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- 1. Multiple Choice
The relative age of a rock is _.
its age compared with the ages of other rocks.
less than the age of the fossils the rock contains.
the number of years since the rock formed.
its age based on how much carbon-14 the rock contains.
- 2. Multiple Choice
What principle states that the geologic processes that change Earth today also changed Earth in the past?
evolution
superposition
erosion
uniformitarianism
- 3. Multiple Choice
Knowing the age of rocks important for understanding the history of Earth. One method for doing this is radioactive dating. This method allows geologists to _.
tell the difference between molds and casts.
tell where one soil horizon ends and the next one begins.
determine the absolute ages of rocks.
determine the relative ages of rock layers.
- 4. Multiple Choice
What are fossils?
molds and casts of organisms that live today
footprints or burrows of small animals that live today
the preserved remains or traces of organisms that lived in the past
drawings of ancient animals or other organisms
- 5. Multiple Choice
What has the study of fossils allowed scientists to do?
study present ocean temperatures at different depths
analyze the chemical composition of sedimentary rocks and minerals
predict which organisms will become extinct in the future
describe past environments and the history of life
- 6. Multiple Choice
Occasionally, layers of sedimentary rock are disturbed. When this happens, layers of older rock are pushed and BENT on top of younger layers. What do scientists call this?
Faulting
Folding
Smooshing
Undisturbed
- 7. Multiple Choice
Trace fossils always form in soft sediment. Which of these choices describes two kinds of trace fossils?
tracks and burrows
bee and beetle in amber
shells and bones
petrified and mummified fossils
- 8. Multiple Choice
Which of the following is NOT a characteristic of an index fossil?
Widespread
Short-Lived
Abundant
Rare
- 9. Multiple Choice
A type of organism that no longer exists on Earth is said to be _.
fossilized.
petrified.
sedimentary.
extinct.
- 10. Multiple Choice
Which part(s) of organisms are most likely to be fossils and why?
It would be the bones because they decay the slowest.
It would be the skin because it's on the outside.
It would be the internal organs because they are protected from the outside.
It is equally likely to be any part of the organism.
- 11. Multiple Choice
If E is an intrusion, what is the relative age of E compared to layer B?
E is older than B
E is younger than B
B and E are the same age
There is no way to tell which is older.
- 12. Multiple Choice
Jacob has 1 older brother and 1 younger sister. He wants to explain relative dating to them using their ages as an example. Which of these statements describes their ages using relative dating?
The boys have different ages than the girl.
Jacob is younger than his brother, but older than his sister.
They are all about the same age.
Their ages are 14,12 and 9.
- 13. Multiple Choice
Using radioactive dating, it is determined that the fossil is 200 million years old. From which Era would this dinosaur be from?
Paleozoic
Mesozoic
Cretaceous
Cambrian
- 14. Multiple Choice
What is the process by which the remains of ancient organisms are turned into rock, forming fossils?
Decomposition
Fossilization
Carbonization
Metamorphosis
- 15. Multiple Choice
What is the principle that states in any undisturbed sequence of rocks, the youngest rock is on top and the oldest on bottom, each layer being younger than the one beneath it and older than the one above it?
Principle of Original Horizontality
Principle of Cross-Cutting Relationships
Principle of Superposition
Principle of Inclusions
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