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nikkilynn933 nikkilynn933
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6 years ago
Humus is ________.
 
  A) composed of organic matter and is necessary to fertility and holding soil moisture
  B) artificial fertilizer applied to monocultures
  C) one of the primary causes of desertification
  D) the result of agricultural runoff into waterways or groundwater
  E) found in the E layer of a soil horizon
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6 years ago
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