The Conservation Reserve Program pays farmers to ________
A) stop growing tobacco
B) stop cultivating highly erodible land
C) experiment growing new varieties of GM crops
D) pasture cattle instead of growing crops
E) grow native crops such as corn and beans
B
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In which of the following conditions does wet laundry hanging outdoors on a clothesline dry most quickly? Air Temperature (ºC) Relative Humidity Wind Speed (km/h)
A. 15 75% 20 B. 15 50% 20 C. 4 50% 10 D. 4 75% 20
Synergistic effects of toxicants that are mixed together ________
A) typically have simple additive effects B) are not numerous in the natural environment C) have effects that tend to cancel one another out D) always involve synthetic toxicants E) often are multiplicative (the mixed toxicants may multiply each other's effects)
The maximum amount of sediment that a stream could carry is the:
a. capacity b. competence c. load d. bed load
Which of the following associations is generally true?
A) External processes: creative and uplifting B) Internal processes: wearing-down and destructive C) External processes: poorly understood D) Internal processes: well understood E) External processes: decrease local relief