INDIAN GEOGRAPHY

Detailed explanation-1: -The Northern Plain was formed by the interplay of the three major river systems, namely– the Indus, the Ganga and the Brahmaputra along with their tributaries. It is composed of alluvial soil which has been deposited over millions of years, it is about 2400 km long and about 240 to 320 km broad.

Detailed explanation-2: -The northern plains are formed by the alluvial deposits of the three major river systems of the Indus, the Ganga and the Brahmaputra along with their tributaries. This plain is completely formed of alluvial soil. The plains are very fertile and are best suited for agriculture.

Detailed explanation-3: -Most alluvial soils are derived from the sediment being deposited by the river Ganga in the Indo–Gangetic plain, ranging from Punjab in the west to West Bengal and Assam in the east, as well as in the coastal areas of northern parts of Gujarat, Narmada, and Tapi valleys, which are formed by sea waves.

Detailed explanation-4: -Alluvial soil is formed from the sediments deposited by the rivers in Indo-Gangetic plains and by sea waves in the coastal plains. It is very fertile and hence, excellent for agriculture. This soil is found extensively in the northern plains and other river valleys in India.

Detailed explanation-5: -The correct answer is Alluvial Soils. Alluvial soil is the most widely spread and important soil. In fact, the entire northern plains are made of alluvial soil. These have been deposited by three important Himalayan river systems– the Indus, the Ganga and the Brahmaputra.