Which of these irrigation methods is most effective at reducing soil salinization?
A. drip
B. gravity-flow
C. center pivot, low pressure
D. high pressure spraying
Answer: A
Environmental & Atmospheric Sciences
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Who is considered the father of physical oceanography?
a. Charles Wilkes b. Matthew Maury c. James Cook d. Charles Darwin e. John Murray
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Which of the following shows the location of the Humbolt Current?
A. A B. B C. C D. D
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Most of the precipitation and evaporation on Earth takes place over which of the following?
A. oceans. B. ice caps and glaciers combined. C. poles of the planet. D. land masses.
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