On the basis of origin and structure, the Indian sub-continent can be divided into five physiographic units: 1. The Himalayas 2. The Peninsular Region 3. The Indus-Ganga-Brahmaputra Plain 4. The Coastal Plains 5. The Islands. Unit # 1. The Himalayas: The Himalayas consist of a series of parallel mountain ranges that stretch in a north-west […]