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Jose7up Jose7up
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7 years ago
Humus is ________.
A) the artificial fertilizer applied to monocultures
B) composed of organic compounds and is necessary for fertile soils and for holding soil moisture
C) a layer sometimes found in a soil horizon that is created by eluviation; it causes serious problems in agricultural fields in climates with high humidity
D) caused by agricultural runoff into waterways or into the water table
E) one of the primary causes of desertification if it is present in excess
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Environment: The Science Behind the Stories, Canadian Edition

Environment: The Science Behind the Stories, Canadian Edition


Edition: 3rd
Authors:
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