Which of the following is the most true?
A. At this time, soil is eroding in the U.S. about 10 times faster than it is forming.
B. The most important agent of soil erosion is winter frost heave.
C. Very little farmland in the United States has experienced moderate to severe erosion lately.
D. Soil erosion is always easily reversible, using conservation techniques.
Answer: A
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A) 500,000 B) 200,000 C) 100,000 D) 60,000 E) 30,000
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____________ ____________ the highest high and lowest low tides. Fill in the blank(s) with the appropriate word(s).
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