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Questions 1

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Chapter 1
1. The theory that explains how sections of the earth's crust move and interact is called
2. Geology is the science of
3. The
A.
B.
C.
D.

earth is estimated to be
10 million
46 million
4.6 billion
100 billion

.
years old.

4. Which statement accurately describes uniformitarianism?


A. The Grand Canyon is the result of a major catastrophe about 10 million years ago.
B. Geologic changes are the result of processes operating over long periods of time.
C. All mountain ranges are the same age.
D. Mineral grains found in igneous rock are of uniform size.
5. New oceanic crust is created
A. along midocean ridges.
B. in deep-sea trenches.
C. in mountain ranges.
D. beneath stream channels.
For questions 6-10, select the correct era from the list on the right. You may use an answer more than once.
6. The longest era

A. Cenozoic

7. Era when the first fish appeared

B. Mesozoic

8. Era with the fewest fossils

C. Paleozoic

9. The last 65 million years

D. Precambrian

10. Era when the first land plants appeared


11. The three basic types of rock are

, and

12. (T/F) The faster magma cools, the smaller the crystals formed.
13. When oceanic crust and continental crust converge in a subduction zone,
overrides
crust.
14. The layer beneath the earth's crust is called the
15. The most abundant rock minerals are those containing
A.
B.
C.
D.

carbon.
platinum.
uranium.
silicon.

crust

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