Question

Differentiate Between V Shaped And I Shaped Valley

Answer 1

v shaped valley:

In mountainous region the river flows very fast down the steep slope and wears away the bed. This active downcutting produces deep,narrow V shaped valley. Lateral corrasion or side cutting is so prominent at this stage.

I shaped valley:

When the river flows throughly an arid region made up of non resistant rocks, most of its energy is spent in down cutting rather than widening of the valley. Thus the valley developed and looks like 'I' shaped.

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