dpquoc/ARC · Datasets at Hugging Face

Unnamed: 0 int64 0 2.25k	id stringlengths 8 22	question stringlengths 17 683	A stringlengths 1 147	B stringlengths 1 134	C stringlengths 1 153	D stringlengths 1 129 ⌀	answer stringclasses 5 values
2,181	Mercury_407531	When a red bull (RR) is bred with a white cow (WW), a roan calf (RW) is sometimes produced. If a roan bull (RW) is bred with a roan cow (RW), what is the most likely outcome of the offspring?	1 red, 1 white, and 2 roan	0 red, 1 white, and 3 roan	2 red, 2 white, and 0 roan	0 red, 0 white, and 4 roan	A
2,182	Mercury_SC_401594	Which adaptive feature most helps a baby jaguar survive the first few weeks of life?	the ability to roar	the ability to hunt	a diet of land mammals	being born during spring months	D
2,183	ACTAAP_2009_7_16	Frank needs to move a box by sliding it across the floor. Which two factors will most strongly affect how hard Frank needs to push the box?	The density of the box material and the hardness of the floor	The thickness of the box material and the hardness of the floor	The total mass of the box and the friction between the box and the floor	The total height of the box and the distance between his hands and the floor	C
2,184	LEAP_2012_4_10303	An ocean, a forest, and a grassy meadow are each examples of a complete ecosystem. Complete ecosystems contain only	animals.	rocks and water.	living and nonliving things.	populations of plants and animals.	C
2,185	Mercury_7214288	The Great Basin in Nevada is characterized by uplifted, tilted blocks forming mountain ranges and downthrown blocks forming basins. What rock type is MOST likely to form in the basins?	metamorphic	sedimentary	intrusive igneous	extrusive igneous	B
2,186	MDSA_2010_8_39	As the human population increases, more fossil fuels are being used. The burning of fossil fuels produces greenhouse gases. How might humans reduce greenhouse gases?	Buy cars that use gasoline.	Build power plants that use coal.	Use renewable resources to generate power.	Use nonrenewable resources to generate power.	C
2,187	AKDE&ED_2012_8_26	Which situation would most likely cause an object to travel in a circular motion?	one force acting on the object in the opposite direction of the motion	two forces acting on the object in the same direction as the motion	one force acting on the object perpendicular to the direction of the motion	two forces acting on the object in different directions to the motion	C
2,188	AIMS_2008_4_11	Which of the following does not give an example of how sparrows use resources in their environment to survive?	Sparrows breathe air.	Sparrows drink water.	Sparrows use the sun for food.	Sparrows use plants for shelter.	C
2,189	Mercury_SC_407570	Henry and Emily are building a tree house. Which tool should be used to measure the height of the door?	hammer	meter stick	balance	stopwatch	B
2,190	NYSEDREGENTS_2009_4_1	Windy, cloudy, rainy, and cold are words that help describe	evaporation	deposition	matter	weather	D
2,191	Mercury_7041493	All these statements concerning galaxies are accurate except	They contain millions of stars.	Most can be seen without a telescope.	They are millions of light-years apart.	Space contains several billion galaxies.	B
2,192	Mercury_7011078	Hydrogen gas and oxygen gas combine to form water. Which would be a more concise way of expressing what happens in this chemical reaction?	write a chemical formula	write a chemical equation	describe the rearrangement of the atoms	describe the procedure for creating this change	B
2,193	Mercury_7064733	What safety equipment should be taken on all field trips?	gloves	fire extinguisher	first-aid kit	goggles	C
2,194	MCAS_2003_8_30	The surface gravity of Pluto is the weakest of the nine planets because Pluto	has the lowest temperature.	has the smallest mass.	rotates the slowest.	is farthest from the Sun.	B
2,195	Mercury_7043610	If a class wants to measure the speed of a bicycle during an outdoor lab exercise, which two devices would be most useful?	stopwatch and camera	binoculars and tape measure	binoculars and camera	stopwatch and tape measure	D
2,196	Mercury_SC_416528	When sunlight shines on a plant, its leaves	make food.	absorb water.	produce seeds.	take in oxygen.	A
2,197	Mercury_SC_409240	Toads lay their eggs in ponds. Tadpoles hatch from the eggs and eat the plants floating in the pond. Which resource is most important for toads to survive?	grass	rocks	trees	water	D
2,198	VASoL_2009_5_11	Which structure surrounds and protects an animal cell?	Nucleus	Vacuole	Cytoplasm	Cell membrane	D
2,199	Mercury_7234658	A ball is thrown straight up. Which statement best describes the motion of the ball while the ball is at the maximum height?	The speed and acceleration are constant.	The velocity is zero, and the acceleration is constant.	The speed and acceleration are changing.	The velocity is zero, and the acceleration is changing.	B
2,200	Mercury_7003868	Which organ is most responsible for oxygen entering the blood stream?	nose	trachea	bronchi	lungs	D
2,201	NCEOGA2013_8_20	Why is a healthy diet important?	It maintains a constant body temperature.	It prevents damage to internal organs.	It makes oxygen for all the cells in the body.	It supplies the body’s needs for growth and energy.	D
2,202	Mercury_SC_402631	In the human body, the breaking down of food into simple substances occurs in the	digestive system.	excretory system.	circulatory system.	respiratory system.	A
2,203	Mercury_188650	Which of the following processes is an important part of star formation?	nuclear fusion	nuclear fission	molecular fusion	molecular fission	A
2,204	Mercury_SC_409152	Carlos puts a new battery into a radio. What does the battery supply to the radio that makes it turn on?	friction	electricity	a sound wave	a magnetic field	B
2,205	Mercury_7139983	What may form as a direct result of a star collapsing?	constellation	galaxy	protostar	supernova	D
2,206	MCAS_2008_8_5708	A shoe manufacturer randomly selects 10% of the production from each shift. Each of these shoes is checked to ensure that it is correctly made. What is this process called?	quality control	product distribution	production selection	research and development	A
2,207	MSA_2012_5_36	Some materials are electrical conductors. Which material best conducts electricity?	copper	plastic	rubber	wood	A
2,208	Mercury_SC_408343	Angela wants to report daily weather conditions. In which unit should Angela record the air temperature?	degrees Celsius	centimeters	milliliters	grams	A
2,209	Mercury_7113908	Which organisms use the energy from the remains of dead animals and recycle the nutrients back into the environment?	producers	herbivores	omnivores	decomposers	D
2,210	OHAT_2007_5_8	Which is the first step in a design process?	Revise the solution.	Describe the problem.	Test the possible solutions.	Identify possible solutions.	B
2,211	Mercury_7043803	What type of chemical reaction occurs when the body breaks down fats and sugars that supply it with energy?	endothermic	exothermic	electrical	physical	B
2,212	Mercury_7222723	Intense heat and pressure in Earth's crust can change sandstone into quartzite. During this metamorphosis, many properties of these rocks change. Which property of these rocks will most likely remain the same?	mass	volume	crystal structure	particle shape	A
2,213	NYSEDREGENTS_2006_8_40	How do decomposers obtain their food?	hunting and killing prey for food	changing carbon dioxide and water into food	absorbing food from dead organisms	producing food from oxygen and sunlight	C
2,214	Mercury_177240	A ball on a cart is moving at a rate of 2 m/s. The cart suddenly stops and the ball continues to travel in the same direction at the same speed. This is an example of the	law of gravity.	first law of motion.	second law of motion.	third law of motion.	B
2,215	Mercury_7105140	Why is it important to have a large sample size in an investigation?	to be able to compare results	to increase the validity of the data	to form the best conclusion	to ensure the procedure is followed	B
2,216	MCAS_1999_4_14	Burt used a spoon to stir soup that was cooking on his stove. Which spoon will stay the coolest while he stirs?	an iron spoon	an aluminum spoon	a wooden spoon	a silver spoon	C
2,217	Mercury_7283763	Which is a distinction between an epidemic and a pandemic?	the symptoms of the disease	the geographical area affected	the species of organisms infected	the season in which the disease spreads	B
2,218	Mercury_7130795	When two bumper cars collide, some of the kinetic energy of the cars is transformed. Which form of energy is most likely formed as a result of this collision?	electrical	electromagnetic	magnetic	sound	D
2,219	ACTAAP_2015_5_5	Which statement describes all matter?	All matter contains carbon.	All matter contains oxygen.	All matter is made up of cells.	All matter is made up of atoms.	D
2,220	Mercury_SC_402126	Carbon dioxide is removed from Earth's atmosphere by	animal respiration.	decaying organisms.	plant photosynthesis.	burning fossil fuels.	C
2,221	Mercury_SC_408974	A water company uses lab tests on the water supply before sending the water through pipes to people's homes. How do these lab tests help people?	by adding minerals and nutrients to the water	by checking the water to make sure it is safe to drink	by filtering chemicals and organisms out of the water	by stopping harmful substances from entering the water	B
2,222	Mercury_SC_402158	What safety rule is most important for students to follow when working with acids and bases?	wear nose plugs	put on safety goggles	put away all lab supplies	wear heavy cloth gloves	B
2,223	TIMSS_2003_8_pg32	A person in a dark room looking through a window can clearly see a person outside in the daylight. But a person outside cannot see the person inside. Why does this happen?	There is not enough light being reflected off the person in the room.	Light rays cannot pass through a window twice.	Outside light does not pass through windows.	Sunlight is not as intense as other sources of light.	A
2,224	MDSA_2007_8_18	Many processes on Earth occur at or near tectonic plate boundaries. Which geological events are most common along tectonic plate boundaries?	erosion and deposition	hurricanes and tornadoes	earthquakes and volcanoes	tidal waves and sedimentation	C
2,225	MEAP_2005_8_41	Two pool (billiard) balls collide, causing each to move in a different direction. Eventually, both come to a stop. The most important factor in causing them to stop is	balance.	friction.	gravity.	size.	B
2,226	Mercury_7085348	Which of these provides the best evidence that the environment of Earth has changed over millions of years?	active migration of sand dunes	polished appearance of rock surfaces	marine fossils found in mountains	bones of animals found on the ground	C
2,227	AKDE&ED_2012_4_27	Which physical characteristic do some organisms have that helps them survive in the Arctic?	growing tall to hide in trees	changing fur color to hide from predators	developing large paws to protect themselves from the wind	producing shallow root systems to protect themselves from the cold air	B
2,228	MCAS_2006_9_23	Which of the following occurs during photosynthesis?	CO2 is used to produce water.	CO2 is absorbed by mitochondria.	CO2 and H2O are converted to carbohydrates.	CO2 and H2O are combined into carbonic acid.	C
2,229	Mercury_7098998	A common characteristic of all living things is that they	breathe air.	walk upright.	are made of cells.	use sunlight for growth.	C
2,230	Mercury_7218208	In the solar system, moons orbit planets. Which of these do planets orbit?	the Sun	Halley's comet	the asteroid belt	a black hole	A
2,231	Mercury_7205433	Visible light is which type of wave?	seismic	mechanical	longitudinal	electromagnetic	D
2,232	Mercury_7137708	In some national parks, controlled fires are maintained by firefighters. Which of these is one of the major reasons for using controlled burns to maintain certain ecosystems?	to give nonnative plants a chance to colonize the region	to prevent the spread of pests that cause damage to plants	to replace matured plants with saplings of the same species	to rid the forest floor of accumulated deadwood and brush	D
2,233	MCAS_2016_5_3	Which of the following actions is most likely part of a test to find the hardness of a mineral sample?	heating the sample on a hot plate	scratching the sample with a nail	hitting the sample with a hammer	shining a bright light on the sample	B
2,234	MEA_2010_8_3	In Costa Rica a small tree, the acacia, provides shelter and food for ants. The ants protect the acacia by removing other insects and vines that might harm it. Which term best describes the relationship between the acacia and the ants?	competition	mutualism	parasitism	predation	B
2,235	NYSEDREGENTS_2005_4_25	A car skids along the road and smoke appears to be coming from under the tires. The heat that produces the smoke is caused by	magnetism	sound	light	friction	D
2,236	Mercury_SC_415403	A glacier sometimes leaves behind large chunks of ice. What is left in the ground when these chunks of ice melt?	a valley	a kettle	a crater	a sinkhole	B
2,237	Mercury_7099435	A student uses a high-efficiency gasoline lawnmower to cut grass. The term "high efficiency" is used to indicate that the lawnmower	cuts better than other lawnmowers.	is easier to use than other lawnmowers.	uses less energy than other lawnmowers.	requires more fuel than other lawnmowers.	C
2,238	NYSEDREGENTS_2005_8_37	Which example would result in new cells that are most different from the parent cells?	yeast cells splitting into new cells	bacteria cells dividing into new cells	skin cells dividing to produce more skin cells	sperm and egg cells uniting to produce fertilized egg cells	D
2,239	VASoL_2007_3_23	A dog gets the energy it needs to run from ___.	the air	the Sun	food	water	C
2,240	Mercury_7252770	Certain flowers will open for twelve hours and then close. Which stimulus do the flowers respond to when they open and then when they close for that time period?	light levels	moon phases	seasonal temperatures	carbon dioxide levels	A
2,241	TIMSS_2007_4_pg30	Smoking harms the body in many ways. It is most harmful to which organ?	lung	kidney	liver	stomach	A
2,242	Mercury_7110040	In 1609, Galileo Galilei used lenses to construct the first telescope. His telescope allowed him to observe many objects in space. His invention of the telescope and the data he gathered directly contributed to the understanding that	Earth is the center of the universe.	the planets revolve around the Sun.	all stars eventually explode.	the universe has many galaxies.	B
2,243	NYSEDREGENTS_2004_8_14	The energy obtained from food is measured in units called	watts	Calories	degrees	pounds	B
2,244	Mercury_7138600	Which part of the body works closely with the digestive system to transport nutrients to the cells?	lungs	blood	kidneys	esophagus	B
2,245	NYSEDREGENTS_2016_4_2	An example of a learned behavior is	driving a car	having blue eyes	shivering in the cold	breathing air	A
2,246	CSZ_2009_8_CSZ20770	Iron oxides, such as rust, form when iron metal reacts with oxygen in the air. What are the chemical symbols for the two elements found in iron oxide?	I and O	Ir and O	Fe and O	Pb and O	C
2,247	Mercury_7181318	When water evaporates from Earth's surface into the atmosphere, its molecules enter the gas state. What change in this gas causes molecules to condense into the small water droplets that form clouds?	The mass is reduced.	The volume is increased.	The temperature is reduced.	The pressure is increased.	C
2,248	Mercury_7010080	Which process directly adds carbon into the atmosphere?	increasing plant populations	decreasing animal populations	burning fossil fuels	forming sedimentary rock	C
2,249	NCEOGA_2013_8_37	Scientists think that dolphins and whales may have evolved from a common ancestor. What evidence supports this hypothesis?	They swim the same way.	They eat the same food.	They live in the same area of the ocean.	They have similar anatomies.	D
2,250	Mercury_7188563	A particular organism is able to survive in an environment due to a thick layer of fat beneath its skin. In which situation would the layer of fat most likely be a survival advantage?	swimming in arctic waters	eating large amounts of fish	being preyed upon by other animals	living in an environment with high temperatures	A

2,181

Mercury_407531

When a red bull (RR) is bred with a white cow (WW), a roan calf (RW) is sometimes produced. If a roan bull (RW) is bred with a roan cow (RW), what is the most likely outcome of the offspring?

1 red, 1 white, and 2 roan

0 red, 1 white, and 3 roan

2 red, 2 white, and 0 roan

0 red, 0 white, and 4 roan

A

2,182

Mercury_SC_401594

Which adaptive feature most helps a baby jaguar survive the first few weeks of life?

the ability to roar

the ability to hunt

a diet of land mammals

being born during spring months

D

2,183

ACTAAP_2009_7_16

Frank needs to move a box by sliding it across the floor. Which two factors will most strongly affect how hard Frank needs to push the box?

The density of the box material and the hardness of the floor

The thickness of the box material and the hardness of the floor

The total mass of the box and the friction between the box and the floor

The total height of the box and the distance between his hands and the floor

C

2,184

LEAP_2012_4_10303

An ocean, a forest, and a grassy meadow are each examples of a complete ecosystem. Complete ecosystems contain only

animals.

rocks and water.

living and nonliving things.

populations of plants and animals.

C

2,185

Mercury_7214288

The Great Basin in Nevada is characterized by uplifted, tilted blocks forming mountain ranges and downthrown blocks forming basins. What rock type is MOST likely to form in the basins?

metamorphic

sedimentary

intrusive igneous

extrusive igneous

B

2,186

MDSA_2010_8_39

As the human population increases, more fossil fuels are being used. The burning of fossil fuels produces greenhouse gases. How might humans reduce greenhouse gases?

Buy cars that use gasoline.

Build power plants that use coal.

Use renewable resources to generate power.

Use nonrenewable resources to generate power.

C

2,187

AKDE&ED_2012_8_26

Which situation would most likely cause an object to travel in a circular motion?

one force acting on the object in the opposite direction of the motion

two forces acting on the object in the same direction as the motion

one force acting on the object perpendicular to the direction of the motion

two forces acting on the object in different directions to the motion

C

2,188

AIMS_2008_4_11

Which of the following does not give an example of how sparrows use resources in their environment to survive?

Sparrows breathe air.

Sparrows drink water.

Sparrows use the sun for food.

Sparrows use plants for shelter.

C

2,189

Mercury_SC_407570

Henry and Emily are building a tree house. Which tool should be used to measure the height of the door?

hammer

meter stick

balance

stopwatch

B

2,190

NYSEDREGENTS_2009_4_1

Windy, cloudy, rainy, and cold are words that help describe

evaporation

deposition

matter

weather

D

2,191

Mercury_7041493

All these statements concerning galaxies are accurate except

They contain millions of stars.

Most can be seen without a telescope.

They are millions of light-years apart.

Space contains several billion galaxies.

B

2,192

Mercury_7011078

Hydrogen gas and oxygen gas combine to form water. Which would be a more concise way of expressing what happens in this chemical reaction?

write a chemical formula

write a chemical equation

describe the rearrangement of the atoms

describe the procedure for creating this change

B

2,193

Mercury_7064733

What safety equipment should be taken on all field trips?

gloves

fire extinguisher

first-aid kit

goggles

C

2,194

MCAS_2003_8_30

The surface gravity of Pluto is the weakest of the nine planets because Pluto

has the lowest temperature.

has the smallest mass.

rotates the slowest.

is farthest from the Sun.

B

2,195

Mercury_7043610

If a class wants to measure the speed of a bicycle during an outdoor lab exercise, which two devices would be most useful?

stopwatch and camera

binoculars and tape measure

binoculars and camera

stopwatch and tape measure

D

2,196

Mercury_SC_416528

When sunlight shines on a plant, its leaves

make food.

absorb water.

produce seeds.

take in oxygen.

A

2,197

Mercury_SC_409240

Toads lay their eggs in ponds. Tadpoles hatch from the eggs and eat the plants floating in the pond. Which resource is most important for toads to survive?

grass

rocks

trees

water

D

2,198

VASoL_2009_5_11

Which structure surrounds and protects an animal cell?

Nucleus

Vacuole

Cytoplasm

Cell membrane

D

2,199

Mercury_7234658

A ball is thrown straight up. Which statement best describes the motion of the ball while the ball is at the maximum height?

The speed and acceleration are constant.

The velocity is zero, and the acceleration is constant.

The speed and acceleration are changing.

The velocity is zero, and the acceleration is changing.

B

2,200

Mercury_7003868

Which organ is most responsible for oxygen entering the blood stream?

nose

trachea

bronchi

lungs

D

2,201

NCEOGA2013_8_20

Why is a healthy diet important?

It maintains a constant body temperature.

It prevents damage to internal organs.

It makes oxygen for all the cells in the body.

It supplies the body’s needs for growth and energy.

D

2,202

Mercury_SC_402631

In the human body, the breaking down of food into simple substances occurs in the

digestive system.

excretory system.

circulatory system.

respiratory system.

A

2,203

Mercury_188650

Which of the following processes is an important part of star formation?

nuclear fusion

nuclear fission

molecular fusion

molecular fission

A

2,204

Mercury_SC_409152

Carlos puts a new battery into a radio. What does the battery supply to the radio that makes it turn on?

friction

electricity

a sound wave

a magnetic field

B

2,205

Mercury_7139983

What may form as a direct result of a star collapsing?

constellation

galaxy

protostar

supernova

D

2,206

MCAS_2008_8_5708

A shoe manufacturer randomly selects 10% of the production from each shift. Each of these shoes is checked to ensure that it is correctly made. What is this process called?

quality control

product distribution

production selection

research and development

A

2,207

MSA_2012_5_36

Some materials are electrical conductors. Which material best conducts electricity?

copper

plastic

rubber

wood

A

2,208

Mercury_SC_408343

Angela wants to report daily weather conditions. In which unit should Angela record the air temperature?

degrees Celsius

centimeters

milliliters

grams

A

2,209

Mercury_7113908

Which organisms use the energy from the remains of dead animals and recycle the nutrients back into the environment?

producers

herbivores

omnivores

decomposers

D

2,210

OHAT_2007_5_8

Which is the first step in a design process?

Revise the solution.

Describe the problem.

Test the possible solutions.

Identify possible solutions.

B

2,211

Mercury_7043803

What type of chemical reaction occurs when the body breaks down fats and sugars that supply it with energy?

endothermic

exothermic

electrical

physical

B

2,212

Mercury_7222723

Intense heat and pressure in Earth's crust can change sandstone into quartzite. During this metamorphosis, many properties of these rocks change. Which property of these rocks will most likely remain the same?

mass

volume

crystal structure

particle shape

A

2,213

NYSEDREGENTS_2006_8_40

How do decomposers obtain their food?

hunting and killing prey for food

changing carbon dioxide and water into food

absorbing food from dead organisms

producing food from oxygen and sunlight

C

2,214

Mercury_177240

A ball on a cart is moving at a rate of 2 m/s. The cart suddenly stops and the ball continues to travel in the same direction at the same speed. This is an example of the

law of gravity.

first law of motion.

second law of motion.

third law of motion.

B

2,215

Mercury_7105140

Why is it important to have a large sample size in an investigation?

to be able to compare results

to increase the validity of the data

to form the best conclusion

to ensure the procedure is followed

B

2,216

MCAS_1999_4_14

Burt used a spoon to stir soup that was cooking on his stove. Which spoon will stay the coolest while he stirs?

an iron spoon

an aluminum spoon

a wooden spoon

a silver spoon

C

2,217

Mercury_7283763

Which is a distinction between an epidemic and a pandemic?

the symptoms of the disease

the geographical area affected

the species of organisms infected

the season in which the disease spreads

B

2,218

Mercury_7130795

When two bumper cars collide, some of the kinetic energy of the cars is transformed. Which form of energy is most likely formed as a result of this collision?

electrical

electromagnetic

magnetic

sound

D

2,219

ACTAAP_2015_5_5

Which statement describes all matter?

All matter contains carbon.

All matter contains oxygen.

All matter is made up of cells.

All matter is made up of atoms.

D

2,220

Mercury_SC_402126

Carbon dioxide is removed from Earth's atmosphere by

animal respiration.

decaying organisms.

plant photosynthesis.

burning fossil fuels.

C

2,221

Mercury_SC_408974

A water company uses lab tests on the water supply before sending the water through pipes to people's homes. How do these lab tests help people?

by adding minerals and nutrients to the water

by checking the water to make sure it is safe to drink

by filtering chemicals and organisms out of the water

by stopping harmful substances from entering the water

B

2,222

Mercury_SC_402158

What safety rule is most important for students to follow when working with acids and bases?

wear nose plugs

put on safety goggles

put away all lab supplies

wear heavy cloth gloves

B

2,223

TIMSS_2003_8_pg32

A person in a dark room looking through a window can clearly see a person outside in the daylight. But a person outside cannot see the person inside. Why does this happen?

There is not enough light being reflected off the person in the room.

Light rays cannot pass through a window twice.

Outside light does not pass through windows.

Sunlight is not as intense as other sources of light.

A

2,224

MDSA_2007_8_18

Many processes on Earth occur at or near tectonic plate boundaries. Which geological events are most common along tectonic plate boundaries?

erosion and deposition

hurricanes and tornadoes

earthquakes and volcanoes

tidal waves and sedimentation

C

2,225

MEAP_2005_8_41

Two pool (billiard) balls collide, causing each to move in a different direction. Eventually, both come to a stop. The most important factor in causing them to stop is

balance.

friction.

gravity.

size.

B

2,226

Mercury_7085348

Which of these provides the best evidence that the environment of Earth has changed over millions of years?

active migration of sand dunes

polished appearance of rock surfaces

marine fossils found in mountains

bones of animals found on the ground

C

2,227

AKDE&ED_2012_4_27

Which physical characteristic do some organisms have that helps them survive in the Arctic?

growing tall to hide in trees

changing fur color to hide from predators

developing large paws to protect themselves from the wind

producing shallow root systems to protect themselves from the cold air

B

2,228

MCAS_2006_9_23

Which of the following occurs during photosynthesis?

CO2 is used to produce water.

CO2 is absorbed by mitochondria.

CO2 and H2O are converted to carbohydrates.

CO2 and H2O are combined into carbonic acid.

C

2,229

Mercury_7098998

A common characteristic of all living things is that they

breathe air.

walk upright.

are made of cells.

use sunlight for growth.

C

2,230

Mercury_7218208

In the solar system, moons orbit planets. Which of these do planets orbit?

the Sun

Halley's comet

the asteroid belt

a black hole

A

2,231

Mercury_7205433

Visible light is which type of wave?

seismic

mechanical

longitudinal

electromagnetic

D

2,232

Mercury_7137708

In some national parks, controlled fires are maintained by firefighters. Which of these is one of the major reasons for using controlled burns to maintain certain ecosystems?

to give nonnative plants a chance to colonize the region

to prevent the spread of pests that cause damage to plants

to replace matured plants with saplings of the same species

to rid the forest floor of accumulated deadwood and brush

D

2,233

MCAS_2016_5_3

Which of the following actions is most likely part of a test to find the hardness of a mineral sample?

heating the sample on a hot plate

scratching the sample with a nail

hitting the sample with a hammer

shining a bright light on the sample

B

2,234

MEA_2010_8_3

In Costa Rica a small tree, the acacia, provides shelter and food for ants. The ants protect the acacia by removing other insects and vines that might harm it. Which term best describes the relationship between the acacia and the ants?

competition

mutualism

parasitism

predation

B

2,235

NYSEDREGENTS_2005_4_25

A car skids along the road and smoke appears to be coming from under the tires. The heat that produces the smoke is caused by

magnetism

sound

light

friction

D

2,236

Mercury_SC_415403

A glacier sometimes leaves behind large chunks of ice. What is left in the ground when these chunks of ice melt?

a valley

a kettle

a crater

a sinkhole

B

2,237

Mercury_7099435

A student uses a high-efficiency gasoline lawnmower to cut grass. The term "high efficiency" is used to indicate that the lawnmower

cuts better than other lawnmowers.

is easier to use than other lawnmowers.

uses less energy than other lawnmowers.

requires more fuel than other lawnmowers.

C

2,238

NYSEDREGENTS_2005_8_37

Which example would result in new cells that are most different from the parent cells?

yeast cells splitting into new cells

bacteria cells dividing into new cells

skin cells dividing to produce more skin cells

sperm and egg cells uniting to produce fertilized egg cells

D

2,239

VASoL_2007_3_23

A dog gets the energy it needs to run from ___.

the air

the Sun

food

water

C

2,240

Mercury_7252770

Certain flowers will open for twelve hours and then close. Which stimulus do the flowers respond to when they open and then when they close for that time period?

light levels

moon phases

seasonal temperatures

carbon dioxide levels

A

2,241

TIMSS_2007_4_pg30

Smoking harms the body in many ways. It is most harmful to which organ?

lung

kidney

liver

stomach

A

2,242

Mercury_7110040

In 1609, Galileo Galilei used lenses to construct the first telescope. His telescope allowed him to observe many objects in space. His invention of the telescope and the data he gathered directly contributed to the understanding that

Earth is the center of the universe.

the planets revolve around the Sun.

all stars eventually explode.

the universe has many galaxies.

B

2,243

NYSEDREGENTS_2004_8_14

The energy obtained from food is measured in units called

watts

Calories

degrees

pounds

B

2,244

Mercury_7138600

Which part of the body works closely with the digestive system to transport nutrients to the cells?

lungs

blood

kidneys

esophagus

B

2,245

NYSEDREGENTS_2016_4_2

An example of a learned behavior is

driving a car

having blue eyes

shivering in the cold

breathing air

A

2,246

CSZ_2009_8_CSZ20770

Iron oxides, such as rust, form when iron metal reacts with oxygen in the air. What are the chemical symbols for the two elements found in iron oxide?

I and O

Ir and O

Fe and O

Pb and O

C

2,247

Mercury_7181318

When water evaporates from Earth's surface into the atmosphere, its molecules enter the gas state. What change in this gas causes molecules to condense into the small water droplets that form clouds?

The mass is reduced.

The volume is increased.

The temperature is reduced.

The pressure is increased.

C

2,248

Mercury_7010080

Which process directly adds carbon into the atmosphere?

increasing plant populations

decreasing animal populations

burning fossil fuels

forming sedimentary rock

C

2,249

NCEOGA_2013_8_37

Scientists think that dolphins and whales may have evolved from a common ancestor. What evidence supports this hypothesis?

They swim the same way.

They eat the same food.

They live in the same area of the ocean.

They have similar anatomies.

D

2,250

Mercury_7188563

A particular organism is able to survive in an environment due to a thick layer of fat beneath its skin. In which situation would the layer of fat most likely be a survival advantage?

swimming in arctic waters

eating large amounts of fish

being preyed upon by other animals

living in an environment with high temperatures

A