How many metric tons of soil erode away each year in the United States?
A) 1 billion
B) 4 billion
C) 14 billion
D) 24 billion
Answer: B
Environmental & Atmospheric Sciences
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What will be an ideal response?
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Which characteristic of air provides a measure of the average speed of the atoms and molecules?
A) pressure B) temperature C) density D) evaporation
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Which of the following energy sources is considered nonrenewable?
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Indicate whether the statement is true or false
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