Answer:
Himalayas are called young fold
mountains. The movement of the tectonic plates has resulted in the formation of
the Himalayas. The breaking up of Gondwana land led to the collision between
the Indo-Australian plate and the Eurasian plate. Due to the collision, the sedimentary
rocks which were accumulated in the Tethys, folded to become the mountain
system of the Himalayas.
These have been formed
relatively recently in the earth's history, compared to older mountain ranges
like the avavallis in India. Himalayas represent a youthful topography with
high peaks, deep valleys and fast flowing rivers. They are known as fold
mountains because the mountain extend for 2500 km in length in a series of
parallel ridges or folds. (3)
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