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    Question

    When you travel in the Himalayas, you will see the following:

    1. Deep gorges

    2. U-turn river courses

    3. Parallel mountain ranges

    4. Steep gradients causing land-sliding

    Which of the above can be said to be the evidence for the Himalayas being young fold mountains?

    A 1 and 2 only Correct Answer Incorrect Answer
    B 1, 2 and 4 only Correct Answer Incorrect Answer
    C 3 and 4 only Correct Answer Incorrect Answer
    D 1, 2, 3 and 4 Correct Answer Incorrect Answer

    Solution

    The Himalayas began forming in the Upper Cretaceous period (60 million years ago). Young fold mountains have not yet undergone an extensive erosional process of exogenic forces, thus they have deep gorges, U-turn river courses, Parallel mountain ranges and steep gradients. These features are generally absent in old-fold mountains which are characterized by lower altitude, rounded peaks, gentle slopes and rolling hills.

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