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
You might also like to view...
According to the textbook, humans have always migrated, beginning about ________ years ago
A) 500,000 B) 200,000 C) 100,000 D) 60,000 E) 30,000
When the sun, Earth, and moon are in linear alignment, the solar and lunar tides reinforce each other making
____________ ____________ the highest high and lowest low tides. Fill in the blank(s) with the appropriate word(s).
Which color portion of the visible spectrum emits the lowest amount of energy?
A. blue B. green C. red D. yellow
"Work" is scientifically defined as ________
A) pressure acting over time B) wavelength times the speed of light C) force acting over distance D) energy transfer per unit of time E) joules per second