The use of strip cropping helps to control soil erosion by
A. reducing leaching.
B. increasing the cation exchange capacity.
C. increasing saltation.
D. reducing runoff.
Answer: D
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The polar easterlies
A) occur at approximately 75-80 degrees north latitude. B) are little affected by the Coriolis force. C) dissipate substantially in winter. D) are strongest over continents. E) help feed the trade winds.
The O horizon of soils consists of ________
A) material leached from the top layers of soils B) materials deposited by erosion C) mostly organic material D) bedrock E) weathered parent material
A surface separating different rock types is called a
A. contact B. xenolith C. chill zone D. none of the preceding
How does vegetation removal affect the contribution of sediment to streams?
What will be an ideal response?