Question

The term 'dun' refers to -
i) Longitudinal valley lying between the lesser and the greater Himalayas.
1) Longitudinal valley lying between the lesser and the outer Himalayas.
k) Longitudinal valley lying between the lesser and the inner Himalayas.
1) Longitudinal valley lying between the lesser and the Himachal Himalayas.​

Answer 1

hey mate....

ans is opt. b

The longitudinal valley lying between Shiwaliks and lesser Himalaya are known as Duns. The word Shiwalik has its origin in the geological formation found in and around a place called Sivawala near Dehra Dun.

hope it helps....