Evaporation from the soil surface (E) is determined to a large degree by soil surface wetness.
Indicate whether the statement is true or false
Question 2Which of the following will not increase the efficiency of water use by plants in an irrigation system?
A) the use of flood irrigation for forage crops
B) the use of drip irrigation for fruit trees
C) the use of crop residues to reduce evaporation
D) the use of herbicides to control weeds
E) the use of concrete-lined delivery ditches
Question 3Corn plants are generally more efficient in the use of water than is alfalfa.
Indicate whether the statement is true or false
Question 4The most common form of on-site waste water treatment for homes not hooked up to sewer lines is the ________.
A) active composting method
B) chemical flush system
C) septic tank and drain field
D) soil enrichment process
E) electrical induction sterilization
Question 5Some two-thirds of the solar energy reaching the earth is absorbed by water on or near the earth's surface.
Indicate whether the statement is true or false
Question 6Which of the following locations in the United States would have the highest evaporation (E) from the soil surface in July?
A) a corn field in New York
B) a bare, unirrigated dry land soil in Colorado
C) a forest woodland in Illinois
D) a furrow-irrigated cotton field in Arizona
E) an unirrigated soil in South Carolina growing cotton
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