题目内容

Which of the following is the divisions of the geologic time scale in correct order of decreasing lengths of time, from the longest interval to the shortest?

A. eon – era – period – epoch
B. eon – era – epoch – period
C. era – epoch – period – eon
D. era – period – epoch – eon

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How is the “principle of fossil succession” used in correlating rock layers from place to place?

A. Since life forms evolve from complex to simple over time, older rock strata will have relatively complex versions of life forms than younger layers.
B. Since life forms evolve from simple to complex over time, older rock strata will have relatively complex versions of life forms than younger layers.
C. Since life forms evolve from simple to complex over time, older rock strata will have relatively simple versions of life forms than younger layers.
D. Since life forms do not change in complexity over time, all rock strata will have relatively similar versions of life forms.

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Which of the following explains the main focus of the field of geology called “paleontology”?

A. The study of radioactive decay in minerals and fossils in rocks.
B. The study of minerals, rocks, and biology that lead to understanding numerical ages of rocks.
C. The study of past life forms through the study of fossils in rocks.
D. The study of isotopes and atoms within fossils in rocks.

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Unconformities include:

A. angular unconformities
B. nonconformity
C. conformity
D. disconformity

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Which of the following best describes an “unconformity”?

A fault or fracture with younger strata above and older strata below.
B. A surface of erosion with younger strata above and older strata below.
C. A surface of erosion with older strata above and younger strata below.
D. A fault or fracture with older strata above and younger strata below.

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Which of the following is the divisions of the geologic time scale in correct order of decreasing lengths of time, from the longest interval to the shortest?

A. eon – era – period – epoch B. eon – era – epoch – period C. era – epoch – period – eon D. era – period – epoch – eon

How is the “principle of fossil succession” used in correlating rock layers from place to place?

Which of the following explains the main focus of the field of geology called “paleontology”?

Unconformities include:

Which of the following best describes an “unconformity”?

A. eon – era – period – epoch
B. eon – era – epoch – period
C. era – epoch – period – eon
D. era – period – epoch – eon