CBSE Class 9 Answered

The Northern Indian Plains have been formed due to the depositional activities of the Himalayan Rivers. This is one of the most fertile plains in the world. The plain spread over an area of 7 lakh square km. The Northern Plains are 2400 km long and about 240-320 km broad. Since it is extremely fertile, it is one of the most densely populated regions in the world. Favourable climate and adequate water supply has made it agriculturally an extremely productive part of India. Rice and wheat are two main food crops which are mainly cultivated on the Northern Plains. On the basis of regional characteristics, the Northern Plains are divided in to:

• The Punjab Plains:The western part of the Northern Plains is referred to as the Punjab Plains
• The Ganga Plains: The Ganga Plains are called so as they are mainly drained by River Ganga and its tributaries
• The Brahmaputra Plains: The Brahmaputra Plains are drained by the river Brahmaputra and its tributaries. This plain mostly lies in the state of Assam.