What is the definition of an inclusion?

A) A fossil of an organism that existed for a short period of geologic time
B) A fragment of one rock unit enclosed in another rock unit
C) An unstable isotope decaying into a stable form
D) A fault bisecting a layer of rock


Answer: B

Environmental & Atmospheric Sciences

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This cloud type is the first indication that a warm front is coming

A) altostratus. B) cirrus. C) cirrostratus. D) nimbostratus. E) stratus.

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The dip in the water table below wells is called the

A. aquifer. B. discharge area. C. cone of depression. D. recharge area.

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The geologic time scale was first developed in the 19th century using radiometric-dating techniques

Indicate whether the statement is true or false

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Volcanoes are found at ____________________ plate boundaries and ____________________ plate boundaries

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences