Explanation:

1 and 3 only

The Bhabar belt is indeed considered suitable for the growth of big trees with large roots. This is because the Bhabar region, located at the foothills of the Himalayas, has coarse and porous soil, allowing for better water drainage and supporting the growth of large trees with extensive root systems.

There are antecedent rivers crossing the Himalayas. Antecedent rivers are those that existed before the uplift of a mountain range. Many rivers, such as the Indus and the Brahmaputra, have antecedent origins and cross the Himalayas.

Marusthali (desert area) was not geologically a part of the Peninsular Plateau. The desert regions in India, like the Thar Desert (Marusthali), have a different geological history and are not part of the Peninsular Plateau.