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Discussion :: World Agriculture, Minerals and Industries

  1. Which of the following statements is/are not true?
    1. Chemical weathering is most common in limestone rocks
    2. Chemical weathering is most active in wet regions with higher temperature
    3. Rain action is a form of chemical weathering
    4. Exfoliation is a process of chemical weathering

    2. A.

     1 and 4
    B.

     2 and 3
    C.

     1 and 2
    D.

     4

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    Answer : Option D

    Explanation :

    Exfoliation is not a process of chemical weathering. Exfoliation can occur due to several processes. During a combination of physical and chemical weathering, exfoliation may occur parallel to a rock's outer surface due to a combination of chemical breakdown of minerals , especially in the presence of water.

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