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NDQ_000252 | Marine fossils on the top of Mt. Everest indicate | a. sea level was once higher than the top of Mt. Everest, b. the fossils are not actually marine fossils, but just look like them, c. the rock at the top of Mt. Everest was once under water, d. someone put them up there as a trick | c | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000257 | Preserved traces can include burrows. | a. true, b. false | a | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000260 | Scientists have discovered fossil footprints. | a. true, b. false | a | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000262 | Complete preservation occurs only when remains are preserved in rock. | a. true, b. false | b | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000263 | In the past, fossils inspired legends of monsters. | a. true, b. false | a | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000264 | It is very likely that any given organism will become a fossil. | a. true, b. false | b | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000265 | Fossils in older rocks are more similar to animals that live today than fossils in younger rocks. | a. true, b. false | b | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000266 | Fossils of ocean animals have been found at the top of Mt. Everest. | a. true, b. false | a | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000267 | Fossils form when remains are replaced by minerals. | a. true, b. false | a | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000268 | Fossils show that Antarctica once had a much warmer climate. | a. true, b. false | a | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000269 | Index fossils are the first fossils ever discovered of an extinct species. | a. true, b. false | b | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000270 | Complete preservation is valuable because scientists can study the organisms DNA. | a. true, b. false | a | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000271 | There are no plants in Antarctica so there are no plant fossils there. | a. true, b. false | b | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000272 | Teeth are more likely than feathers to be preserved as fossils. | a. true, b. false | a | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000273 | People first started discovering fossils about 150 years ago. | a. true, b. false | b | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000274 | All fossils form when remains of dead organisms are covered with sediments. | a. true, b. false | b | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000275 | dark stain in rock left by the remains of an organism | a. fossil, b. mold, c. index fossil, d. cast, e. trace fossil, f. fossilization, g. compression | g | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000276 | preserved tracks or other evidence of an organism that lived in the past | a. fossil, b. mold, c. index fossil, d. cast, e. trace fossil, f. fossilization, g. compression | e | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000277 | type of fossil that can be used to determine the age of rock layers | a. fossil, b. mold, c. index fossil, d. cast, e. trace fossil, f. fossilization, g. compression | c | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000278 | process by which remains or traces of living things become fossils | a. fossil, b. mold, c. index fossil, d. cast, e. trace fossil, f. fossilization, g. compression | f | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000279 | type of fossil that forms in a mold | a. fossil, b. mold, c. index fossil, d. cast, e. trace fossil, f. fossilization, g. compression | d | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000280 | any preserved remains or traces of an organism that lived in the past | a. fossil, b. mold, c. index fossil, d. cast, e. trace fossil, f. fossilization, g. compression | a | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000281 | imprint of an organism left in rock | a. fossil, b. mold, c. index fossil, d. cast, e. trace fossil, f. fossilization, g. compression | b | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000282 | Which of the following parts of organisms are most likely to be fossilized? | a. skin, b. hair, c. shells, d. internal organs | c | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000283 | Preserved traces of organisms might include | a. casts, b. feces, c. molds, d. compressions | b | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000284 | Preserved remains that have become fossils have turned to | a. tar, b. rock, c. amber, d. none of the above | b | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000285 | Which type of organisms remains are least likely to be preserved as fossils? | a. jellyfish, b. salmon, c. shark, d. tuna | a | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000286 | Fossils can show us | a. how extinct organisms looked, b. what past environments were like, c. what geological processes occurred in the past, d. all of the above | d | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000287 | To be used as index fossils, fossils must represent an organism that | a. lived in the water, b. lived over a wide area, c. lived for a long period of time, d. lived less than 5 million years ago | b | Lesson: fossils
What Are Fossils:
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure 11.1. Preserved traces can include footprints, burrows, or even wastes. Exampl... |
NDQ_000288 | Earths geologic processes have changed over time. | a. true, b. false | b | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000289 | A rocks age compared to the ages of other rocks is called its | a. absolute age, b. confirmed age, c. nominal age, d. none of the above | d | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000290 | Extinction occurs when a species completely dies out. | a. true, b. false | a | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000291 | The Law of Superposition states that | a. younger rocks are found below older rocks, b. older rocks are found below younger rocks, c. a rock that cuts across other rocks must be younger than the rock it cuts across, d. none of the above | b | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000292 | Layers of sedimentary rock are called strata. | a. true, b. false | a | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000293 | The rock layers at the Grand Canyon | a. are the same on opposite sides of the river, b. were formed in different ways on each side of the river, c. are younger than the Colorado River in that region, d. none of these | a | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000294 | A good key bed must be | a. found over a large area, b. similar to the rock units it is found with, c. a volcanic ash, d. all of these | a | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000295 | The relative age of a rock is its approximate age in years. | a. true, b. false | b | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000296 | Rock layers on opposite sides of the Grand Canyon show lateral continuity. | a. true, b. false | a | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000297 | A good index fossil | a. is found in a local area, b. is distinctive, c. existed for a long period of time, d. all of these | b | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000299 | Key beds are rock layers that have unconformities. | a. true, b. false | b | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000300 | More than one type of index fossil provides stronger evidence that rock layers are the same age. | a. true, b. false | a | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000302 | The Cretaceous Period ended when the first dinosaurs appeared. | a. true, b. false | b | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000305 | The earliest geologic time scale showed how many years ago each era began. | a. true, b. false | b | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000307 | Fish were common organisms during the Paleozoic Era. | a. true, b. false | a | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000308 | Fossil B is younger than Fossil A, but the rock layer containing Fossil B is beneath the rock layer | a. true, b. false | a | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000310 | To help decipher the geologic history of a region, create a geologic time scale using the rock units you | a. true, b. false | b | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000313 | James Hutton thought Earth was old because he saw how slowly geological processes work now. | a. true, b. false | a | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000315 | Cross-cutting relationships help geologists to determine the older and younger of two rock units. | a. true, b. false | a | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000316 | In the process of relative dating, scientists determine the exact age of a fossil or rock. | a. true, b. false | b | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000320 | whether a rock is older or younger than other rocks | a. stratigraphy, b. superposition, c. relative age, d. lateral continuity, e. original horizontality, f. cross-cutting relationships, g. unconformity | c | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000321 | law stating that rock layers are deposited in horizontal layers | a. stratigraphy, b. superposition, c. relative age, d. lateral continuity, e. original horizontality, f. cross-cutting relationships, g. unconformity | e | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000322 | law stating that rock layers closer to the surface are younger than deeper rock layers | a. stratigraphy, b. superposition, c. relative age, d. lateral continuity, e. original horizontality, f. cross-cutting relationships, g. unconformity | b | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000323 | law stating that rock layers are older than any rocks that cut across them | a. stratigraphy, b. superposition, c. relative age, d. lateral continuity, e. original horizontality, f. cross-cutting relationships, g. unconformity | f | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000324 | gap in a sequence of rock layers | a. stratigraphy, b. superposition, c. relative age, d. lateral continuity, e. original horizontality, f. cross-cutting relationships, g. unconformity | g | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000325 | law stating that matching nearby rock layers are the same age | a. stratigraphy, b. superposition, c. relative age, d. lateral continuity, e. original horizontality, f. cross-cutting relationships, g. unconformity | d | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000326 | study of rock layers | a. stratigraphy, b. superposition, c. relative age, d. lateral continuity, e. original horizontality, f. cross-cutting relationships, g. unconformity | a | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000327 | If sedimentary rock layers are tilted, they must have | a. formed at an angle, b. moved after they formed, c. been cross-cut by igneous rock, d. formed from deposits on a mountainside | b | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000328 | A key bed of clay from around the time the dinosaurs went extinct led to the hypothesis that the extinction was caused by a | a. large flood, b. huge volcano, c. giant asteroid, d. none of the above | c | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000329 | Evidence shows that Earth is about | a. 1.9 million years old, b. 2.8 million years old, c. 3.8 billion years old, d. 4.5 billion years ol | d | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000330 | Eons of the geologic time scale are divided first into | a. years, b. periods, c. eras, d. epochs | c | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000331 | The Cenozoic Era is called the age of | a. dinosaurs, b. mammals, c. reptiles, d. life | b | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000332 | What does the term paleozoic mean? | a. fossil life, b. ancient rock, c. rock strata, d. old life | d | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000333 | Many of the divisions of the geologic time scale mark major events in the history of | a. life, b. science, c. astronomy, d. Earth science | a | Lesson: relative ages of rocks
Laws of Stratigraphy:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earths past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in Fi... |
NDQ_000335 | How much percent of the parent isotope remains after 2 half-lives? | a. 100%, b. 50%, c. 25%, d. 75% | c | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000337 | The half-life of a radioactive element is | a. half the estimated age of Earths crust, b. the time it takes for half a parent isotope to decay into the daughter isotope, c. half the weight of the original radioactive element, d. the time it takes for half of a daughter isotope to decay into a parent isotope | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000339 | Carbon dating is useful for | a. igneous rocks, b. sedimentary rocks, c. organic materials, d. none of the above | c | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000340 | Potassium-argon is better for dating igneous rocks than carbon-14 because | a. the argon-39 half life is short, b. the potassium-40 half-life is long, c. igneous rocks do not contain carbon, d. all of these | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000343 | For radiometric dating of Earths oldest rocks, it is best to use | a. uranium-238 to lead-206, b. potassium-argon, c. radiocarbon, d. none of these | a | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000348 | The number of protons in atoms of the same element may vary. | a. true, b. false | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000351 | Almost all carbon atoms are atoms of carbon-14. | a. true, b. false | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000353 | When an atom of carbon-14 decays, it loses an electron. | a. true, b. false | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000354 | Using radioactivity scientists are able to measure the relative age of some rocks. | a. true, b. false | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000355 | Carbon-14 atoms decay to carbon-13 atoms. | a. true, b. false | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000356 | Radioactive isotopes gain or lose particles to become different elements. | a. true, b. false | a | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000357 | The half-life of a radioactive isotope is constant. | a. true, b. false | a | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000358 | A living thing takes in carbon-14 only while it is alive. | a. true, b. false | a | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000359 | No one knows Earths age because no isotopes are good for substances that old. | a. true, b. false | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000360 | Carbon-14 dating can be used to determine the ages of rocks. | a. true, b. false | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000361 | Carbon-14 loses an alpha particle, which is two protons and two electrons. | a. true, b. false | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000362 | Plants take in carbon-14 during photosynthesis. | a. true, b. false | a | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000363 | The half-life of carbon-14 is 5730 years. | a. true, b. false | a | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000364 | All fossils can be dated with carbon-14 dating. | a. true, b. false | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000365 | To date a rock that is as old as Earth, you could use potassium-40 dating. | a. true, b. false | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000366 | Absolute ages are based on evidence from | a. key beds, b. stratigraphy, c. index fossils, d. radiometric dating | d | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000367 | Which of the following atomic particles may vary for atoms of a given element? | a. protons, b. neutrons, c. electrons, d. all of the above | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000368 | How many protons are found in each atom of carbon-14? | a. 14, b. 8, c. 7, d. 6 | d | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000369 | If a carbon atom has 7 neutrons, it is the isotope named | a. carbon-11, b. carbon-12, c. carbon-13, d. carbon-14 | c | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000370 | Plants use carbon dioxide for the process of | a. respiration, b. germination, c. reproduction, d. photosynthesis | d | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000371 | New atoms of carbon-14 form in the atmosphere because of | a. pollution, b. cosmic rays, c. global warming, d. burning of fossil fuels | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000372 | If you start with 1.00 g of carbon-14, the amount left after two half-lives will be | a. 0 g, b. 0.25 g, c. 0.50 g, d. 0.75 g | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000373 | using radioactive decay to estimate the age of a fossil or rock | a. isotope, b. carbon-14, c. carbon-12, d. uranium-238, e. radioactive decay, f. half-life, g. radiometric dating | g | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000374 | radioactive element with a relatively long half-life | a. isotope, b. carbon-14, c. carbon-12, d. uranium-238, e. radioactive decay, f. half-life, g. radiometric dating | d | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000375 | rate of decay of a radioactive element | a. isotope, b. carbon-14, c. carbon-12, d. uranium-238, e. radioactive decay, f. half-life, g. radiometric dating | f | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000376 | atom of an element with a different number of neutrons | a. isotope, b. carbon-14, c. carbon-12, d. uranium-238, e. radioactive decay, f. half-life, g. radiometric dating | a | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000377 | stable isotope of carbon | a. isotope, b. carbon-14, c. carbon-12, d. uranium-238, e. radioactive decay, f. half-life, g. radiometric dating | c | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000378 | radioactive element with a relatively short half-life | a. isotope, b. carbon-14, c. carbon-12, d. uranium-238, e. radioactive decay, f. half-life, g. radiometric dating | b | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000379 | breakdown of unstable elements into stable elements | a. isotope, b. carbon-14, c. carbon-12, d. uranium-238, e. radioactive decay, f. half-life, g. radiometric dating | e | Lesson: absolute ages of rocks
Radioactive Decay:
Radioactive decay is the breakdown of unstable elements into stable elements. To understand this process, recall that the atoms of all elements contain the particles protons, neutrons, and electrons.
Isotopes:
An element is defined by the number of protons it contain... |
NDQ_000380 | ring of icy debris just beyond Neptune | a. atmosphere, b. nuclear fusion, c. comet, d. solar nebula, e. water vapor, f. Kuiper belt, g. oxygen | f | Lesson: the origin of earth
Formation the Solar System:
Our solar system began about 5 billion years ago. The Sun, planets and other solar system objects all formed at about the same time.
The Solar Nebula:
The Sun and planets formed from a giant cloud of gas and dust. This was the solar nebula. The cloud contracted... |
NDQ_000381 | Before the Sun formed | a. temperature and pressure was extreme, b. radioactivity began, c. the planets formed, d. all of the above | a | Lesson: the origin of earth
Formation the Solar System:
Our solar system began about 5 billion years ago. The Sun, planets and other solar system objects all formed at about the same time.
The Solar Nebula:
The Sun and planets formed from a giant cloud of gas and dust. This was the solar nebula. The cloud contracted... |
NDQ_000382 | example of an object in the solar system | a. atmosphere, b. nuclear fusion, c. comet, d. solar nebula, e. water vapor, f. Kuiper belt, g. oxygen | c | Lesson: the origin of earth
Formation the Solar System:
Our solar system began about 5 billion years ago. The Sun, planets and other solar system objects all formed at about the same time.
The Solar Nebula:
The Sun and planets formed from a giant cloud of gas and dust. This was the solar nebula. The cloud contracted... |
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