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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-20

  • question_answer
    'Humus' is an example of -

    A)  Soil crystal                   

    B)  Crystalloid

    C)  Biological colloid           

    D)  None of the above

    Correct Answer: C

    Solution :

     Humus has a characteristic black or dark brown colour and is organic due to an accumulation of organic carbon. Therefore it is an example of biological colloid.


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