Which of the following properties would be least useful for identifying a sample of calcite?

A) reaction to hydrochloric acid
B) three planes of cleavage
C) white color
D) hardness of 3 on the Mohs scale


Answer: C

Environmental & Atmospheric Sciences

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When the upper-air exhibits a general ________ flow, cyclonic systems tend to move through quickly, creating rapidly changing weather conditions

A) West to East B) West to South C) North to East D) North to South

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Most of the more-developed countries have ________.

A. low death rates and low birthrates B. high death rates and high birthrates C. low death rates and high birthrates D. high death rates and low birthrates

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In tropical regions, the trade winds converge along the ____, producing rising air, towering clouds, and heavy precipitation all year long

a. equator b. eastern coastal margins c. Intertropical Convergence Zone (ITCZ) d. western coastal margins e. subtropical highs

Environmental & Atmospheric Sciences

The size of clasts that a stream can carry is primarily controlled by

A. the velocity and turbulence of the current. B. how close the stream is to the ocean. C. the dissolved and suspended load of a stream. D. the water temperature. E. whether it is a permanent or ephemeral stream.

Environmental & Atmospheric Sciences