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NDQ_005889 | the vernal equinox happens around september 22 or 23. | a. true, b. false | a | Lesson: seasons
Earths Seasons:
A common misconception is that the Sun is closer to Earth in the summer and farther away from it during the winter. Instead, the seasons are caused by the 23.5o tilt of Earths axis of rotation relative to its plane of orbit around the Sun (Figure 1.1). Solstice refers to the position of... |
NDQ_005891 | water is good at dissolving salts and other substances because | a. it is a polar molecule, b. it has more ionic charge than other substances, c. it is present on earth as a gas, liquid and solid, d. it is wet | a | Lesson: seawater chemistry
Composition of Ocean Water:
Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water.
Salinity:
Where does the salt in seawater come from? As water moves through rock and soil on la... |
NDQ_005892 | in an estuary, | a. there is a lot of evaporation so the water is very saline, b. calcium chloride is more abundant than sodium chloride due to river runoff, c. seawater mixes with freshwater so the water has intermediate salinity, d. the salinity is constant | c | Lesson: seawater chemistry
Composition of Ocean Water:
Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water.
Salinity:
Where does the salt in seawater come from? As water moves through rock and soil on la... |
NDQ_005893 | salts in seawater are made with | a. chlorine as the anion, b. sodium as the most abundant cation, c. magnesium or calcium as cations, d. all of the above | d | Lesson: seawater chemistry
Composition of Ocean Water:
Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water.
Salinity:
Where does the salt in seawater come from? As water moves through rock and soil on la... |
NDQ_005894 | all salt is dangerous for humans and we should eat only a tiny amount each day. | a. true, b. false | b | Lesson: seawater chemistry
Composition of Ocean Water:
Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water.
Salinity:
Where does the salt in seawater come from? As water moves through rock and soil on la... |
NDQ_005895 | the salts in seawater come from | a. rain, b. evaporation, c. weathering of rock and soil, d. all of the above | c | Lesson: seawater chemistry
Composition of Ocean Water:
Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water.
Salinity:
Where does the salt in seawater come from? As water moves through rock and soil on la... |
NDQ_005896 | the salinity is high in water in the great salt lake in utah because | a. evaporation rates are high, b. the input of fresh water is low, c. the lake has no outlet to the sea, d. all of the above | d | Lesson: seawater chemistry
Composition of Ocean Water:
Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water.
Salinity:
Where does the salt in seawater come from? As water moves through rock and soil on la... |
NDQ_005897 | chlorine is the most abundant cation in seawater. | a. true, b. false | b | Lesson: seawater chemistry
Composition of Ocean Water:
Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water.
Salinity:
Where does the salt in seawater come from? As water moves through rock and soil on la... |
NDQ_005898 | why might seawater and freshwater not mix? | a. saltwater is denser so it sinks, b. freshwater is denser so it sinks, c. saltwater is colder so it sinks, d. freshwater is colder so it sinks | a | Lesson: seawater chemistry
Composition of Ocean Water:
Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water.
Salinity:
Where does the salt in seawater come from? As water moves through rock and soil on la... |
NDQ_005899 | water density increases when | a. salinity decreases, b. temperature decreases, c. pressure decreases, d. all of the above | b | Lesson: seawater chemistry
Composition of Ocean Water:
Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water.
Salinity:
Where does the salt in seawater come from? As water moves through rock and soil on la... |
NDQ_005900 | conglomerate rocks are made from | a. jagged, angular rocks, b. round rocks, c. sand, d. clay | b | Lesson: sedimentary rock classification
Types of Sedimentary Rocks:
Rock Conglomerate Breccia Sandstone Siltstone Shale Sediment Size Large Large Sand-sized Silt-sized, smaller than sand Clay-sized, smallest Other Features Rounded Angular When sediments settle out of calmer water, they form horizontal layers. One laye... |
NDQ_005901 | shale is made from | a. jagged, angular rocks, b. round rocks, c. sand, d. clay | d | Lesson: sedimentary rock classification
Types of Sedimentary Rocks:
Rock Conglomerate Breccia Sandstone Siltstone Shale Sediment Size Large Large Sand-sized Silt-sized, smaller than sand Clay-sized, smallest Other Features Rounded Angular When sediments settle out of calmer water, they form horizontal layers. One laye... |
NDQ_005902 | biochemical sedimentary rocks from in oceans or salt lakes. | a. true, b. false | a | Lesson: sedimentary rock classification
Types of Sedimentary Rocks:
Rock Conglomerate Breccia Sandstone Siltstone Shale Sediment Size Large Large Sand-sized Silt-sized, smaller than sand Clay-sized, smallest Other Features Rounded Angular When sediments settle out of calmer water, they form horizontal layers. One laye... |
NDQ_005903 | which of these rocks are not clastic? | a. conglomerate, b. sandstone, c. coal, d. shale | c | Lesson: sedimentary rock classification
Types of Sedimentary Rocks:
Rock Conglomerate Breccia Sandstone Siltstone Shale Sediment Size Large Large Sand-sized Silt-sized, smaller than sand Clay-sized, smallest Other Features Rounded Angular When sediments settle out of calmer water, they form horizontal layers. One laye... |
NDQ_005904 | sedimentary rocks in order of particle size from small to large is | a. conglomerate or breccia-sandstone-siltstone-shale, b. shale-siltstone-sandstone-conglomerate or breccia, c. sandstone-shale-breccia-siltstone-conglomerate, d. sandstone-siltstone-shale-conglomerate-breccia | b | Lesson: sedimentary rock classification
Types of Sedimentary Rocks:
Rock Conglomerate Breccia Sandstone Siltstone Shale Sediment Size Large Large Sand-sized Silt-sized, smaller than sand Clay-sized, smallest Other Features Rounded Angular When sediments settle out of calmer water, they form horizontal layers. One laye... |
NDQ_005905 | rock salt is a clastic rock. | a. true, b. false | b | Lesson: sedimentary rock classification
Types of Sedimentary Rocks:
Rock Conglomerate Breccia Sandstone Siltstone Shale Sediment Size Large Large Sand-sized Silt-sized, smaller than sand Clay-sized, smallest Other Features Rounded Angular When sediments settle out of calmer water, they form horizontal layers. One laye... |
NDQ_005906 | sediments are deposited | a. horizontally, b. vertically, c. as a coating on the land surface, d. all of these | a | Lesson: sedimentary rock classification
Types of Sedimentary Rocks:
Rock Conglomerate Breccia Sandstone Siltstone Shale Sediment Size Large Large Sand-sized Silt-sized, smaller than sand Clay-sized, smallest Other Features Rounded Angular When sediments settle out of calmer water, they form horizontal layers. One laye... |
NDQ_005907 | sedimentary rocks are made by | a. rock fragments, b. precipitate from fluids, c. precipitation from living organisms, d. all of the above | d | Lesson: sedimentary rock classification
Types of Sedimentary Rocks:
Rock Conglomerate Breccia Sandstone Siltstone Shale Sediment Size Large Large Sand-sized Silt-sized, smaller than sand Clay-sized, smallest Other Features Rounded Angular When sediments settle out of calmer water, they form horizontal layers. One laye... |
NDQ_005908 | which of these rocks forms from chemicals that precipitate from evaporating water? | a. rock salt, b. coal, c. gypsum, d. conglomerate | c | Lesson: sedimentary rock classification
Types of Sedimentary Rocks:
Rock Conglomerate Breccia Sandstone Siltstone Shale Sediment Size Large Large Sand-sized Silt-sized, smaller than sand Clay-sized, smallest Other Features Rounded Angular When sediments settle out of calmer water, they form horizontal layers. One laye... |
NDQ_005909 | sedimentary rocks are classified by | a. how they form, b. sediment size, c. whether they are made from living things, d. all of the above | d | Lesson: sedimentary rock classification
Types of Sedimentary Rocks:
Rock Conglomerate Breccia Sandstone Siltstone Shale Sediment Size Large Large Sand-sized Silt-sized, smaller than sand Clay-sized, smallest Other Features Rounded Angular When sediments settle out of calmer water, they form horizontal layers. One laye... |
NDQ_005910 | sedimentary rocks are made from | a. fragments of other rocks, b. organic materials, c. chemical precipitates, d. all of the above | d | Lesson: sedimentary rocks
Sediments:
Sandstone is one of the common types of sedimentary rocks that form from sediments. There are many other types. Sediments may include: fragments of other rocks that often have been worn down into small pieces, such as sand, silt, or clay. organic materials, or the remains of once-l... |
NDQ_005911 | which describes mechanical weathering? | a. precipitation that creates minerals, b. breaking minerals and rocks into smaller pieces, c. removal of minerals and rocks by water, wind, ice or gravity, d. dissolution of less stable minerals and rocks | b | Lesson: sedimentary rocks
Sediments:
Sandstone is one of the common types of sedimentary rocks that form from sediments. There are many other types. Sediments may include: fragments of other rocks that often have been worn down into small pieces, such as sand, silt, or clay. organic materials, or the remains of once-l... |
NDQ_005912 | darker sediments form when the environment is oxygen rich. | a. true, b. false | b | Lesson: sedimentary rocks
Sediments:
Sandstone is one of the common types of sedimentary rocks that form from sediments. There are many other types. Sediments may include: fragments of other rocks that often have been worn down into small pieces, such as sand, silt, or clay. organic materials, or the remains of once-l... |
NDQ_005913 | red rocks are formed when this element is present. | a. nitrogen, b. carbon, c. silica, d. oxygen | d | Lesson: sedimentary rocks
Sediments:
Sandstone is one of the common types of sedimentary rocks that form from sediments. There are many other types. Sediments may include: fragments of other rocks that often have been worn down into small pieces, such as sand, silt, or clay. organic materials, or the remains of once-l... |
NDQ_005914 | organic materials are made from the remains of once-living organisms. | a. true, b. false | a | Lesson: sedimentary rocks
Sediments:
Sandstone is one of the common types of sedimentary rocks that form from sediments. There are many other types. Sediments may include: fragments of other rocks that often have been worn down into small pieces, such as sand, silt, or clay. organic materials, or the remains of once-l... |
NDQ_005915 | erosion is the process in which sediments are removed and transported by water, wind, ice, or gravity. | a. true, b. false | a | Lesson: sedimentary rocks
Sediments:
Sandstone is one of the common types of sedimentary rocks that form from sediments. There are many other types. Sediments may include: fragments of other rocks that often have been worn down into small pieces, such as sand, silt, or clay. organic materials, or the remains of once-l... |
NDQ_005916 | streams erode sediments in this way | a. larger sediments in mountain areas and smaller sediments in flatter regions, b. smaller sediments in mountain areas and larger sediments in flatter regions, c. larger sediments were streams move slowly and smaller sediments where they move rapidly, d. none of the above | a | Lesson: sedimentary rocks
Sediments:
Sandstone is one of the common types of sedimentary rocks that form from sediments. There are many other types. Sediments may include: fragments of other rocks that often have been worn down into small pieces, such as sand, silt, or clay. organic materials, or the remains of once-l... |
NDQ_005917 | landslides dropping large piles of sediment due to | a. wind, b. ice, c. gravity, d. water | c | Lesson: sedimentary rocks
Sediments:
Sandstone is one of the common types of sedimentary rocks that form from sediments. There are many other types. Sediments may include: fragments of other rocks that often have been worn down into small pieces, such as sand, silt, or clay. organic materials, or the remains of once-l... |
NDQ_005918 | chemical precipitates are made by fragments of other worn down rocks. | a. true, b. false | b | Lesson: sedimentary rocks
Sediments:
Sandstone is one of the common types of sedimentary rocks that form from sediments. There are many other types. Sediments may include: fragments of other rocks that often have been worn down into small pieces, such as sand, silt, or clay. organic materials, or the remains of once-l... |
NDQ_005919 | minerals are created when | a. water condenses to form halite and other salts, b. water evaporates and mineral components dissolve, c. water evaporates and minerals precipitate out, d. none of these | c | Lesson: sedimentary rocks
Sediments:
Sandstone is one of the common types of sedimentary rocks that form from sediments. There are many other types. Sediments may include: fragments of other rocks that often have been worn down into small pieces, such as sand, silt, or clay. organic materials, or the remains of once-l... |
NDQ_005920 | the high point of a wave. | a. trough, b. amplitude, c. crest, d. length | c | Lesson: seismic waves
Waves:
Energy is transmitted in waves. Every wave has a high point called a crest and a low point called a trough. The height of a wave from the center line to its crest is its amplitude. The distance between waves from crest to crest (or trough to trough) is its wavelength. The parts of a wave a... |
NDQ_005921 | the height of a wave from the center line to its high point. | a. trough, b. amplitude, c. crest, d. length | b | Lesson: seismic waves
Waves:
Energy is transmitted in waves. Every wave has a high point called a crest and a low point called a trough. The height of a wave from the center line to its crest is its amplitude. The distance between waves from crest to crest (or trough to trough) is its wavelength. The parts of a wave a... |
NDQ_005922 | scientists can learn most everything about earths interior by studying the waves that come into one seismograph. | a. true, b. false | b | Lesson: seismic waves
Waves:
Energy is transmitted in waves. Every wave has a high point called a crest and a low point called a trough. The height of a wave from the center line to its crest is its amplitude. The distance between waves from crest to crest (or trough to trough) is its wavelength. The parts of a wave a... |
NDQ_005923 | the distance between waves from trough to trough is its. | c. trough, d. amplitude, e. crest, f. wavelength | f | Lesson: seismic waves
Waves:
Energy is transmitted in waves. Every wave has a high point called a crest and a low point called a trough. The height of a wave from the center line to its crest is its amplitude. The distance between waves from crest to crest (or trough to trough) is its wavelength. The parts of a wave a... |
NDQ_005924 | s-waves can move through | a. solids, liquids and gases, b. solids and liquids, but not gases, c. solids, but not liquids and gases, d. liquids and gases, but not solids | c | Lesson: seismic waves
Waves:
Energy is transmitted in waves. Every wave has a high point called a crest and a low point called a trough. The height of a wave from the center line to its crest is its amplitude. The distance between waves from crest to crest (or trough to trough) is its wavelength. The parts of a wave a... |
NDQ_005925 | which of these statements is not true about s-waves? | a. s-waves are secondary waves, b. s-waves move up and down or side to side, c. s-waves cannot travel through liquids, d. s-waves compress and expand | d | Lesson: seismic waves
Waves:
Energy is transmitted in waves. Every wave has a high point called a crest and a low point called a trough. The height of a wave from the center line to its crest is its amplitude. The distance between waves from crest to crest (or trough to trough) is its wavelength. The parts of a wave a... |
NDQ_005926 | which of these statements is not true about surface waves? | a. there are two types of surface waves, b. surface waves travel through solids, liquids and gases, c. surface waves travel along the ground, d. surface waves are the slowest of all seismic waves | b | Lesson: seismic waves
Waves:
Energy is transmitted in waves. Every wave has a high point called a crest and a low point called a trough. The height of a wave from the center line to its crest is its amplitude. The distance between waves from crest to crest (or trough to trough) is its wavelength. The parts of a wave a... |
NDQ_005927 | we know that earth has a liquid outer core because | a. p-waves travel through the core at the same speed they travel through solids, b. s-waves disappear at the core-mantle boundary, c. surface waves highlight the transition between the liquid outer core and the solid inner core, d. all of these | b | Lesson: seismic waves
Waves:
Energy is transmitted in waves. Every wave has a high point called a crest and a low point called a trough. The height of a wave from the center line to its crest is its amplitude. The distance between waves from crest to crest (or trough to trough) is its wavelength. The parts of a wave a... |
NDQ_005928 | p-waves speed up at the mantle core boundary. | a. true, b. false | b | Lesson: seismic waves
Waves:
Energy is transmitted in waves. Every wave has a high point called a crest and a low point called a trough. The height of a wave from the center line to its crest is its amplitude. The distance between waves from crest to crest (or trough to trough) is its wavelength. The parts of a wave a... |
NDQ_005929 | scientists can learn about earth interior by using seismic waves because: | a. p-waves go faster in material that is more rigid, b. s-waves do not make it to all seismic stations if they must travel through a liquid, c. p-waves bend slightly when they travel between material types, d. all of these | d | Lesson: seismic waves
Waves:
Energy is transmitted in waves. Every wave has a high point called a crest and a low point called a trough. The height of a wave from the center line to its crest is its amplitude. The distance between waves from crest to crest (or trough to trough) is its wavelength. The parts of a wave a... |
NDQ_005930 | in a normal year, the trade winds blow from __________ near __________. | a. east to west; the 45th parallel, b. west to eat: the 45th parallel, c. east to west; the equator, d. west to east; the equator | c | Lesson: short term climate change
El Nio Southern Oscillation:
Short-term changes in climate are common and they have many causes (Figure 1.1). The largest and most important of these is the oscillation between El Nio and La Nia conditions. This cycle is called the ENSO (El Nio Southern Oscillation). The ENSO drives c... |
NDQ_005931 | in a normal year, the peru current carries cold water north along south america and then across the equator. | a. true, b. false | a | Lesson: short term climate change
El Nio Southern Oscillation:
Short-term changes in climate are common and they have many causes (Figure 1.1). The largest and most important of these is the oscillation between El Nio and La Nia conditions. This cycle is called the ENSO (El Nio Southern Oscillation). The ENSO drives c... |
NDQ_005932 | in a normal year, along western south america | a. upwelling brings cold, nutrient-rich water to the surface, b. downwelling takes warm, nutrient-poor water to the bottom, c. surface currents bring warm, nutrient rich water from the equator, d. none of these | a | Lesson: short term climate change
El Nio Southern Oscillation:
Short-term changes in climate are common and they have many causes (Figure 1.1). The largest and most important of these is the oscillation between El Nio and La Nia conditions. This cycle is called the ENSO (El Nio Southern Oscillation). The ENSO drives c... |
NDQ_005933 | the north atlantic oscillation mostly alters climate in europe. | a. true, b. false | a | Lesson: short term climate change
El Nio Southern Oscillation:
Short-term changes in climate are common and they have many causes (Figure 1.1). The largest and most important of these is the oscillation between El Nio and La Nia conditions. This cycle is called the ENSO (El Nio Southern Oscillation). The ENSO drives c... |
NDQ_005934 | el nio events | a. alter rainfall patters so some regions receive much more rain than normal, b. bring drought to some regions, c. ordinarily last one to two years, d. all of the above | d | Lesson: short term climate change
El Nio Southern Oscillation:
Short-term changes in climate are common and they have many causes (Figure 1.1). The largest and most important of these is the oscillation between El Nio and La Nia conditions. This cycle is called the ENSO (El Nio Southern Oscillation). The ENSO drives c... |
NDQ_005935 | warm water in the western pacific ocean decreases sea levels. | a. true, b. false | b | Lesson: short term climate change
El Nio Southern Oscillation:
Short-term changes in climate are common and they have many causes (Figure 1.1). The largest and most important of these is the oscillation between El Nio and La Nia conditions. This cycle is called the ENSO (El Nio Southern Oscillation). The ENSO drives c... |
NDQ_005936 | during el nio, | a. downwelling off of south america ends, b. the trade winds and surface currents reverse direction, c. cold water piles up in the eastern pacific ocean, d. all of these | b | Lesson: short term climate change
El Nio Southern Oscillation:
Short-term changes in climate are common and they have many causes (Figure 1.1). The largest and most important of these is the oscillation between El Nio and La Nia conditions. This cycle is called the ENSO (El Nio Southern Oscillation). The ENSO drives c... |
NDQ_005937 | during la nia, | a. surface wind and water currents flow in their normal directions, b. cold water piles up in the western pacific ocean, c. weather patterns mirror the patterns in el nio, d. all of these | a | Lesson: short term climate change
El Nio Southern Oscillation:
Short-term changes in climate are common and they have many causes (Figure 1.1). The largest and most important of these is the oscillation between El Nio and La Nia conditions. This cycle is called the ENSO (El Nio Southern Oscillation). The ENSO drives c... |
NDQ_005938 | what do el nio events cause to happen off of south america? | a. a rise in upwelling, b. the pooling of cold, nutrient-rich water, c. a collapse of the food web, d. all of these | c | Lesson: short term climate change
El Nio Southern Oscillation:
Short-term changes in climate are common and they have many causes (Figure 1.1). The largest and most important of these is the oscillation between El Nio and La Nia conditions. This cycle is called the ENSO (El Nio Southern Oscillation). The ENSO drives c... |
NDQ_005939 | el nio and la nia make a cycle called the los nios oscillation. | a. true, b. false | b | Lesson: short term climate change
El Nio Southern Oscillation:
Short-term changes in climate are common and they have many causes (Figure 1.1). The largest and most important of these is the oscillation between El Nio and La Nia conditions. This cycle is called the ENSO (El Nio Southern Oscillation). The ENSO drives c... |
NDQ_005980 | how is the suns energy important to earth? | a. the sun heats the planet, b. it drives the weather, c. it helps plants conduct photosynthesis, d. all of the above | d | Lesson: solar energy on earth
Energy From The Sun:
Most of the energy that reaches the Earths surface comes from the Sun (Figure 1.1). About 44% of solar radiation is in the visible light wavelengths, but the Sun also emits infrared, ultraviolet, and other wavelengths.
Ultraviolet:
Of the solar energy that reaches t... |
NDQ_005981 | sensors can detect wavelengths of energy we cant see and convert them to visible light. | a. true, b. false | a | Lesson: solar energy on earth
Energy From The Sun:
Most of the energy that reaches the Earths surface comes from the Sun (Figure 1.1). About 44% of solar radiation is in the visible light wavelengths, but the Sun also emits infrared, ultraviolet, and other wavelengths.
Ultraviolet:
Of the solar energy that reaches t... |
NDQ_005982 | this is the only type of energy humans can see. | a. x-rays, b. microwaves, c. infrared, d. visible | d | Lesson: solar energy on earth
Energy From The Sun:
Most of the energy that reaches the Earths surface comes from the Sun (Figure 1.1). About 44% of solar radiation is in the visible light wavelengths, but the Sun also emits infrared, ultraviolet, and other wavelengths.
Ultraviolet:
Of the solar energy that reaches t... |
NDQ_005983 | with an infrared camera, a living creature | a. is hottest at the top of the head, b. is hottest around the face, c. is hottest around the eyes, mouth and ears, d. is the same temperature all around | c | Lesson: solar energy on earth
Energy From The Sun:
Most of the energy that reaches the Earths surface comes from the Sun (Figure 1.1). About 44% of solar radiation is in the visible light wavelengths, but the Sun also emits infrared, ultraviolet, and other wavelengths.
Ultraviolet:
Of the solar energy that reaches t... |
NDQ_005984 | a shorter wavelength means the wave has less energy. | a. true, b. false | b | Lesson: solar energy on earth
Energy From The Sun:
Most of the energy that reaches the Earths surface comes from the Sun (Figure 1.1). About 44% of solar radiation is in the visible light wavelengths, but the Sun also emits infrared, ultraviolet, and other wavelengths.
Ultraviolet:
Of the solar energy that reaches t... |
NDQ_005985 | stratospheric ozone filters out incoming | a. uvc completely, most uvb, and some uva, b. irc completely, most irb, and some ira, c. all ultraviolet, d. electromagnetic radiation | a | Lesson: solar energy on earth
Energy From The Sun:
Most of the energy that reaches the Earths surface comes from the Sun (Figure 1.1). About 44% of solar radiation is in the visible light wavelengths, but the Sun also emits infrared, ultraviolet, and other wavelengths.
Ultraviolet:
Of the solar energy that reaches t... |
NDQ_005986 | the highest energy ultraviolet is ___________ and the lowest energy ultraviolet is __________. | a. uva; uvc, b. uvc; uva, c. uva; uvb, d. uvb; uvc | b | Lesson: solar energy on earth
Energy From The Sun:
Most of the energy that reaches the Earths surface comes from the Sun (Figure 1.1). About 44% of solar radiation is in the visible light wavelengths, but the Sun also emits infrared, ultraviolet, and other wavelengths.
Ultraviolet:
Of the solar energy that reaches t... |
NDQ_005988 | the only wavelength of energy that are filtered by the atmosphere are uv waves. | a. true, b. false | b | Lesson: solar energy on earth
Energy From The Sun:
Most of the energy that reaches the Earths surface comes from the Sun (Figure 1.1). About 44% of solar radiation is in the visible light wavelengths, but the Sun also emits infrared, ultraviolet, and other wavelengths.
Ultraviolet:
Of the solar energy that reaches t... |
NDQ_005989 | oxygen in the atmosphere filters out | a. red waves of visible light, b. the shortest wavelength ultraviolet, c. infrared, d. the longest wavelength ultraviolet | c | Lesson: solar energy on earth
Energy From The Sun:
Most of the energy that reaches the Earths surface comes from the Sun (Figure 1.1). About 44% of solar radiation is in the visible light wavelengths, but the Sun also emits infrared, ultraviolet, and other wavelengths.
Ultraviolet:
Of the solar energy that reaches t... |
NDQ_005990 | the source of solar power is nuclear | a. fission, b. oxidation, c. fusion, d. reduction | c | Lesson: solar power
Solar Energy:
Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy t... |
NDQ_005991 | solar energy through the empty space between the sun and earth as ____________. | a. darkness, b. radio waves, c. heat, d. radiation | d | Lesson: solar power
Solar Energy:
Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy t... |
NDQ_005992 | the sun is the source of energy in | a. fossil fuels, b. nuclear power, c. geothermal energy, d. none of these | a | Lesson: solar power
Solar Energy:
Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy t... |
NDQ_005993 | one of the advantages of solar power over traditional energy source is that solar power | a. can be harnessed locally, b. is much less expensive, c. keeps people in refineries employed, d. all of these | a | Lesson: solar power
Solar Energy:
Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy t... |
NDQ_005994 | the southwestern u.s. is a hotspot for solar energy because the region receives a lot of sunlight. | a. true, b. false | a | Lesson: solar power
Solar Energy:
Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy t... |
NDQ_005995 | in a solar power plant, the sunlight is focused onto a receiver by a group of | a. lenses, b. slides, c. mirrors, d. none of these | c | Lesson: solar power
Solar Energy:
Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy t... |
NDQ_005996 | in a solar power plant, a liquid flowing through a receiver, is heated by | a. conduction, b. focused sunlight, c. direct sunlight, d. convection | b | Lesson: solar power
Solar Energy:
Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy t... |
NDQ_005997 | heat is transferred from the liquid to a nearby object through the process called | a. nuclear power, b. conduction, c. production, d. construction | b | Lesson: solar power
Solar Energy:
Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy t... |
NDQ_005998 | limitations of solar power is include | a. the technology is expensive, b. storing the energy is difficult, c. solar panels take up a lot of space, d. all of the above | d | Lesson: solar power
Solar Energy:
Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy t... |
NDQ_005999 | in the future, cars may be able to run on solar energy. | a. true, b. false | a | Lesson: solar power
Solar Energy:
Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy t... |
NDQ_006000 | orions belt consists of stars that are different colors. | a. true, b. false | a | Lesson: star classification
Color and Temperature:
Think about how the color of a piece of metal changes with temperature. A coil of an electric stove will start out black, but with added heat will start to glow a dull red. With more heat, the coil turns a brighter red, then orange. At extremely high temperatures the ... |
NDQ_006001 | betelgeuse, in the upper left of orions belt, is a ____________. | a. bright, blue, very hot star, b. yellow star like our sun, c. bright, red, fairly cool star, d. white dwarf | c | Lesson: star classification
Color and Temperature:
Think about how the color of a piece of metal changes with temperature. A coil of an electric stove will start out black, but with added heat will start to glow a dull red. With more heat, the coil turns a brighter red, then orange. At extremely high temperatures the ... |
NDQ_006002 | extremely high temperature stars are __________. | a. red, b. orange, c. yellow, d. blue | d | Lesson: star classification
Color and Temperature:
Think about how the color of a piece of metal changes with temperature. A coil of an electric stove will start out black, but with added heat will start to glow a dull red. With more heat, the coil turns a brighter red, then orange. At extremely high temperatures the ... |
NDQ_006003 | class m stars are ________. | a. red, b. orange, c. yellow, d. blue | a | Lesson: star classification
Color and Temperature:
Think about how the color of a piece of metal changes with temperature. A coil of an electric stove will start out black, but with added heat will start to glow a dull red. With more heat, the coil turns a brighter red, then orange. At extremely high temperatures the ... |
NDQ_006004 | stars are classified primarily by their | a. size, b. temperature, c. distance, d. color | d | Lesson: star classification
Color and Temperature:
Think about how the color of a piece of metal changes with temperature. A coil of an electric stove will start out black, but with added heat will start to glow a dull red. With more heat, the coil turns a brighter red, then orange. At extremely high temperatures the ... |
NDQ_006005 | our sun is a ________. | a. yellow star, b. blue star, c. orange star, d. red star | a | Lesson: star classification
Color and Temperature:
Think about how the color of a piece of metal changes with temperature. A coil of an electric stove will start out black, but with added heat will start to glow a dull red. With more heat, the coil turns a brighter red, then orange. At extremely high temperatures the ... |
NDQ_006006 | the brighter the star, the larger it is. | a. true, b. false | a | Lesson: star classification
Color and Temperature:
Think about how the color of a piece of metal changes with temperature. A coil of an electric stove will start out black, but with added heat will start to glow a dull red. With more heat, the coil turns a brighter red, then orange. At extremely high temperatures the ... |
NDQ_006007 | the main sequence stars | a. are white dwarfs, b. range from large, blue to small, red, c. range from white to red supergiants, d. include all the stars in the universe | b | Lesson: star classification
Color and Temperature:
Think about how the color of a piece of metal changes with temperature. A coil of an electric stove will start out black, but with added heat will start to glow a dull red. With more heat, the coil turns a brighter red, then orange. At extremely high temperatures the ... |
NDQ_006008 | the hertzsprung-russell diagram shows _____________________. | a. the distance and temperature of a star, b. the temperature and classification of a star, c. the brightness and temperature of a star, d. the distance and brightness of a star | c | Lesson: star classification
Color and Temperature:
Think about how the color of a piece of metal changes with temperature. A coil of an electric stove will start out black, but with added heat will start to glow a dull red. With more heat, the coil turns a brighter red, then orange. At extremely high temperatures the ... |
NDQ_006009 | the brightest stars are more than 10,000 times brighter than the sun. | a. true, b. false | a | Lesson: star classification
Color and Temperature:
Think about how the color of a piece of metal changes with temperature. A coil of an electric stove will start out black, but with added heat will start to glow a dull red. With more heat, the coil turns a brighter red, then orange. At extremely high temperatures the ... |
NDQ_006010 | this ancient civilization created the zodiac. | a. mayan, b. aztecs, c. babylonian, d. indus | c | Lesson: star constellations
Stars:
When you look at the sky on a clear night, you can see dozens, perhaps even hundreds, of tiny points of light. Almost every one of these points of light is a star, a giant ball of glowing gas at a very, very high temperature. Stars differ in size, temperature, and age, but they all a... |
NDQ_006012 | stars are | a. giant balls of high temperature, glowing gas, b. all the same size, temperature and age, c. objects that do not conform to a single set of principles, d. all of the above | a | Lesson: star constellations
Stars:
When you look at the sky on a clear night, you can see dozens, perhaps even hundreds, of tiny points of light. Almost every one of these points of light is a star, a giant ball of glowing gas at a very, very high temperature. Stars differ in size, temperature, and age, but they all a... |
NDQ_006013 | stars in a constellation appear close together, but most are not at all close together in space. | a. true, b. false | a | Lesson: star constellations
Stars:
When you look at the sky on a clear night, you can see dozens, perhaps even hundreds, of tiny points of light. Almost every one of these points of light is a star, a giant ball of glowing gas at a very, very high temperature. Stars differ in size, temperature, and age, but they all a... |
NDQ_006014 | why do stars move across the sky each night? | a. the stars are all moving through from east to west relative to the earth, b. earth is rotating on its axis, c. the universe is expanding due to the big bang, d. all of the above | b | Lesson: star constellations
Stars:
When you look at the sky on a clear night, you can see dozens, perhaps even hundreds, of tiny points of light. Almost every one of these points of light is a star, a giant ball of glowing gas at a very, very high temperature. Stars differ in size, temperature, and age, but they all a... |
NDQ_006015 | babylonian astronomers created the zodiac to explain natural phenomena that we can now explain with science. | a. true, b. false | a | Lesson: star constellations
Stars:
When you look at the sky on a clear night, you can see dozens, perhaps even hundreds, of tiny points of light. Almost every one of these points of light is a star, a giant ball of glowing gas at a very, very high temperature. Stars differ in size, temperature, and age, but they all a... |
NDQ_006016 | the alignment of stars in the sky, particularly the patterns of the constellations when a person is born, affects events on earth. | a. true, b. false | b | Lesson: star constellations
Stars:
When you look at the sky on a clear night, you can see dozens, perhaps even hundreds, of tiny points of light. Almost every one of these points of light is a star, a giant ball of glowing gas at a very, very high temperature. Stars differ in size, temperature, and age, but they all a... |
NDQ_006017 | asterisms are | a. groups of stars that formed together and stay in the same patterns, b. patterns of stars that appear the same way from earth, c. patterns of stars that change configuration seasonally, d. none of the above | b | Lesson: star constellations
Stars:
When you look at the sky on a clear night, you can see dozens, perhaps even hundreds, of tiny points of light. Almost every one of these points of light is a star, a giant ball of glowing gas at a very, very high temperature. Stars differ in size, temperature, and age, but they all a... |
NDQ_006018 | in winter and in summer, people in a given location see | a. the same constellations, b. only a few constellations, c. different constellations, d. none of these | c | Lesson: star constellations
Stars:
When you look at the sky on a clear night, you can see dozens, perhaps even hundreds, of tiny points of light. Almost every one of these points of light is a star, a giant ball of glowing gas at a very, very high temperature. Stars differ in size, temperature, and age, but they all a... |
NDQ_006019 | when an idea in astrology fails, it is altered or abandoned to fit the new data. | a. true, b. false | b | Lesson: star constellations
Stars:
When you look at the sky on a clear night, you can see dozens, perhaps even hundreds, of tiny points of light. Almost every one of these points of light is a star, a giant ball of glowing gas at a very, very high temperature. Stars differ in size, temperature, and age, but they all a... |
NDQ_006020 | only a few stars are made of hydrogen and helium; most are made of heavier elements. | a. true, b. false | b | Lesson: star power
Star Power:
The Sun is Earths major source of energy, yet the planet only receives a small portion of its energy. The Sun is just an ordinary star. Many stars produce much more energy than the Sun. The energy source for all stars is nuclear fusion.
Nuclear Fusion:
Stars are made mostly of hydrogen... |
NDQ_006021 | a thermonuclear bomb | a. is an uncontrolled fission reaction, b. is a controlled fission reaction, c. is an uncontrolled fusion reaction, d. is a controlled fusion reaction | c | Lesson: star power
Star Power:
The Sun is Earths major source of energy, yet the planet only receives a small portion of its energy. The Sun is just an ordinary star. Many stars produce much more energy than the Sun. The energy source for all stars is nuclear fusion.
Nuclear Fusion:
Stars are made mostly of hydrogen... |
NDQ_006022 | which type of energy does a star emit? | a. visible light, b. ultraviolet light, c. radio waves, d. all of the above | d | Lesson: star power
Star Power:
The Sun is Earths major source of energy, yet the planet only receives a small portion of its energy. The Sun is just an ordinary star. Many stars produce much more energy than the Sun. The energy source for all stars is nuclear fusion.
Nuclear Fusion:
Stars are made mostly of hydrogen... |
NDQ_006023 | there is only one particle accelerator for scientists to use. | a. true, b. false | b | Lesson: star power
Star Power:
The Sun is Earths major source of energy, yet the planet only receives a small portion of its energy. The Sun is just an ordinary star. Many stars produce much more energy than the Sun. The energy source for all stars is nuclear fusion.
Nuclear Fusion:
Stars are made mostly of hydrogen... |
NDQ_006024 | this keeps a star from collapsing from its own gravity. | a. the energy from fusion, b. centrifugal force, c. anti-gravity, d. none of these | a | Lesson: star power
Star Power:
The Sun is Earths major source of energy, yet the planet only receives a small portion of its energy. The Sun is just an ordinary star. Many stars produce much more energy than the Sun. The energy source for all stars is nuclear fusion.
Nuclear Fusion:
Stars are made mostly of hydrogen... |
NDQ_006025 | the core of a star like the sun is so hot that nuclear fusion takes place. | a. true, b. false | a | Lesson: star power
Star Power:
The Sun is Earths major source of energy, yet the planet only receives a small portion of its energy. The Sun is just an ordinary star. Many stars produce much more energy than the Sun. The energy source for all stars is nuclear fusion.
Nuclear Fusion:
Stars are made mostly of hydrogen... |
NDQ_006026 | fusion is ____________. | a. the splitting of one atom to create two new atoms, b. the combining of atoms to create a new atom, c. the creation of heavy elements from light elements, d. none of these | b | Lesson: star power
Star Power:
The Sun is Earths major source of energy, yet the planet only receives a small portion of its energy. The Sun is just an ordinary star. Many stars produce much more energy than the Sun. The energy source for all stars is nuclear fusion.
Nuclear Fusion:
Stars are made mostly of hydrogen... |
NDQ_006027 | the sun produces more energy than most stars. | a. true, b. false | b | Lesson: star power
Star Power:
The Sun is Earths major source of energy, yet the planet only receives a small portion of its energy. The Sun is just an ordinary star. Many stars produce much more energy than the Sun. The energy source for all stars is nuclear fusion.
Nuclear Fusion:
Stars are made mostly of hydrogen... |
NDQ_006028 | a particle accelerator | a. creates conditions in which subatomic particles split apart, b. creates conditions in which nuclear fission happens, c. boosts subatomic particles to extremely high energy levels, d. all of these | c | Lesson: star power
Star Power:
The Sun is Earths major source of energy, yet the planet only receives a small portion of its energy. The Sun is just an ordinary star. Many stars produce much more energy than the Sun. The energy source for all stars is nuclear fusion.
Nuclear Fusion:
Stars are made mostly of hydrogen... |
NDQ_006029 | scientists use particle accelerators to study conditions in | a. the cores of stars, b. the first few minutes of the early universe, c. which hydrogen fuses to produce helium, d. all of these | d | Lesson: star power
Star Power:
The Sun is Earths major source of energy, yet the planet only receives a small portion of its energy. The Sun is just an ordinary star. Many stars produce much more energy than the Sun. The energy source for all stars is nuclear fusion.
Nuclear Fusion:
Stars are made mostly of hydrogen... |
NDQ_006031 | what is a polar molecule? | a. a molecule with a slightly imbalanced electrical charge, b. a molecule that is slightly positively charged, c. a molecule that is slightly negatively charged, d. a molecule that is colder than other molecules | a | Lesson: states of water
The Water Molecule:
Water is simply two atoms of hydrogen and one atom of oxygen bonded together (Figure 1.1). The hydrogen ions are on one side of the oxygen ion, making water a polar molecule. This means that one side, the side with the hydrogen ions, has a slightly positive electrical charge... |
NDQ_006032 | water molecules have this kind of charge. | a. negative, b. in between, c. positive, d. no charge | d | Lesson: states of water
The Water Molecule:
Water is simply two atoms of hydrogen and one atom of oxygen bonded together (Figure 1.1). The hydrogen ions are on one side of the oxygen ion, making water a polar molecule. This means that one side, the side with the hydrogen ions, has a slightly positive electrical charge... |
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