Humus is _______________ .
A) artificial fertilizer applied to monocultures
B) one of the primary causes of desertification
C) composed of organic matter and is necessary to fertility and holding soil moisture
D) found in the E layer of a soil horizon
E) the result of agricultural runoff into waterways or groundwater
Correct Answer:
Verified
Q12: In Queensland, Australia, cactus moths (Cactoblastis cactorum)
Q13: Until about 10,000 years ago, our species
Q14: Match the following:
-Bacterial component for genetically modified
Q15: Monoculture _.
A) farming is illegal in most
Q16: Choose the item that best matches each
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