Loess deposits in the U.S. Midwest are derived from ________.

A. top soil loosened by agriculture
B. the Sahara Desert
C. glacial outwash of the Pleistocene age
D. the Ohio River valley
E. the Rocky Mountains


Answer: C

Environmental & Atmospheric Sciences

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The disaster of Love Canal in New York in the 1970s illustrated the problem of

A) unsafe nuclear waste disposal. B) unsafe toxic waste disposal. C) management of on-site surface impoundments. D) health problems resulting from processing of electronic wastes.

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Describe how GIS works and discuss some of its applications

What will be an ideal response?

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A) shortages of freshwater require the use of saltwater for irrigation. B) salts are deposited on the soil surface as water evaporates. C) the irrigation water washes away soil leaving behind concentrated salts. D) many of the plants grown in these regions excrete salts into the soil.

Environmental & Atmospheric Sciences