Which of the following describes planting protective rows of trees and shrubs beside plowed fields?
A) Strip cropping
B) Contour plowing
C) Bioremediation
D) Shelterbelts
E) No-till farming
Answer: D) Shelterbelts
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Which of the following group of regions receive the most frequent thunderstorms?
A) Gulf of Mexico, central Africa, Southeast Asia B) Great Lakes, north Africa, Japan C) West coast of the United States, northern Canada, Antarctica D) West coast of South America, west coast of south Africa, southern Australia
Robots can be used in the ocean to measure water salinity
a. True b. False
High population density can ________
A) hinder organisms from finding mates B) increase the incidence of disease transmission C) decrease biodiversity within a species D) decrease the use of resources E) decrease competition
Although photovoltaic electricity as a power source is cleaner than burning fossil fuels, the problem with this electricity is that it ________
A) cannot be stored easily in large quantities for use when and where it is needed B) is less efficient than fossil fuels C) is dangerous if stored too long D) will be replaced shortly with other sources of power for homes E) is not sufficiently understood