The shortest subdivision of the geologic time scale is the ________

A) epoch
B) eon
C) era
D) period

Answer: A

Environmental & Atmospheric Sciences

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Which of these four numbered features on the surface or in a cave is a stalactite?



A) 1
B) 2
C) 3
D) 4
E) None of these are correct.

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Despite the ocean's vast size, it is unlikely that is will be able to provide enough food to alleviate malnutrition and starvation in the world

Indicate whether the statement is true or false

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Environmental & Atmospheric Sciences

The variety in the genetic makeup of individuals in a population is known as ____.

A. heritability B. gene flow C. genetic variability D. genetic differences E. genetic drift

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The geomorphic concept that says glaciation still affects today is

(a) Legacy of the Pleistocene. (b) uniformitarianism. (c) gradualism. (d) Legacy of the Pleiocene.

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Environmental & Atmospheric Sciences