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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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