Northern plains have been formed by interplay of three major river systems-Indus, Ganga, and Brahmaputra.
1. Western part of northern plains are called “Punjab plains”, larger part of this plain lies in India.
2. Ganga plain extends between Gandak and Teesta rivers.
3. Brahmaputra plains lie in north east part of India and are hemmed between Arunachal Himalayas on north and Meghalaya plateau on south.
Which is correct about northern plains-?
Explanation:
It lies in the north-eastern part of the country and is hemmed between the Arunachal Himalayas on the north and the Meghalaya Plateau on the south.The valley presents a flat plain. It is formed by the debris brought down by river Brahmaputra and its innumerable tributaries. The plain seldom rises above 100 meters above the sea-level and slopes gently towards the west. Ranges of hills are found standing on both sides of the river.Innumerable Sandbars and islets are found on the Brahmaputra and the river flows out in different channels avoiding obstacles of sandbar. Majuli Island is by far the largest sandbar ever formed on any other river bed in the world. The green Brahmaputra valley is noted for tea plantation.