Multiple Choice Questions on Consider the following statements Weathering due to expansion and contraction of rocks is most effec........... for UPSC Civil Services Examination (General Studies) Preparation

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Multiple Choice Questions

Consider the following statements Weathering due to expansion and contraction of rocks is most effec...........

Geography Geomorphology
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    Consider the following statements:

    1. Weathering due to expansion and contraction of rocks is most effective in wet climates and low elevations.

    2. Hydration is a form of chemical weathering in which the chemical  bonds of the mineral are changed as it interacts with water.

    3. Living or once-living organisms can also be agents of chemical weathering.

    Which of the statements given above are correct?

    1 and 2 only

    Incorrect Answer

    2  only

    Correct Answer

    1 and 3 only

    Incorrect Answer

    All of the above

    Incorrect Answer
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    Explanation:

    • Statement 1 is incorrect because: weathering by expansion involves periodic expansion and contraction of water (freezing and melting) in high or middle latitudes called frost action is powerful mechanism for breaking up rock.
    • In lower latitudes with dry climate, weathering is an important agent in disintegration of rock salt.
    • Statement 3 is incorrect : Living or once-living organisms are agents of Biological weathering.

    By: Kamal Kashyap
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    Let's Discuss

    Hardeep kaur

    living and non living organisms can "ALSO be" or "CAN ONLY BE" the agent of biological weathering ? in 3rd option?

    0 0 reply

    Hardeep kaur

    living and non living organisms can "ALSO be" or "CAN ONLY BE" ? in 3rd option?

    0 0 reply
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