Clays can remain suspended in a water column for decades before settling due to their small size. Indicate whether the statement is true or false


ANS: T
Some of the finest clays just circulate throughout the ocean. Eventually, these particles will stick
together a bit and sink to the bottom. Information can be found in the section Sediments May Be
Classified by Particle Size.

Environmental & Atmospheric Sciences

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Recovery from exposure to crude oil takes much longer than recovery from exposure to refined oil.

Answer the following statement true (T) or false (F)

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Which of the following defines thermal belts?

A. pockets of cold air resting on a valley floor at night B. warmer hillsides that are less likely to experience freezing conditions C. cold, below-freezing air found at the top of a mountain D. pockets of warm air resting on a valley during the afternoon

Environmental & Atmospheric Sciences

How many time zones are shared by the 48 conterminous U.S. states and the Canadian provinces?

A) 3 B) 4 C) 5 D) 6

Environmental & Atmospheric Sciences

The fusion of hydrogen atoms into helium atoms occurs near the end of a star’s life

a. True b. False

Environmental & Atmospheric Sciences