Question

Why Himalayas are called young fold mountains

Answer 1

if we compare other mountains himalayas were new

Answer 2

Answer:

The Himalayas are found to be formed 'very recently' when the Indian Plate collided with the Tibetan Plate (See Plate Tectonics) during the period called Paleocene-Eocene (50 million years ago). This collision of two continental plates formed Orogens or mountains. ... Hence are called Young Fold Mountains!!

hope it helps!!