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      Question

      A complex and rather resistant mixture of brown or black

      amorphous and colloidal substances modified from the original tissues is termed as …………………..
      A Humus Correct Answer Incorrect Answer
      B Phyllosilicates Correct Answer Incorrect Answer
      C Silicate clays Correct Answer Incorrect Answer
      D Sesquioxides clays Correct Answer Incorrect Answer

      Solution

      Humus: A complex and rather resistant mixture of brown or black amorphous and colloidal substances modified from the original tissues or synthesized by the various soil organisms.

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