1. Tick the right option:
(a) One of the following is an old fold mountain
(i) Aravallis
(ii) Alps
(iii) Mt. Kilimanjaro (iv) Himalayas
(b) Tibetan plateau is a
(i) Peidmont plateau
(ii) Intermontane plateau
(iii) Volcanic plateau (iv) None of these
(c) Block mountains are formed due to
(i) folding
(ii) faulting
(iii) volcanic eruption (iv) all of these
(d) Gangetic plains are formed by
(i) erosion
(ii) deposition
(iii) upliftment
(iv) subsidence​