Question

How are aretes formed?

Answer 1

1. Glaciers erode the landscape by levelling soil and stones to expose the solid rock below.
2. Cirque is a glacially eroded rock basin, with a steep side wall and steep head wall, surrounding an armchair-shaped depression.
3. As the ice melts, they get filled up the cirque with water and become beautiful lakes in the mountains called as Tam Lake. When two adjacent cirques erode towards each other, the previously rounded landscape is transformed into a narrow rocky, steep – sided ridge called Aretes.