The Northern Plains

Bhangar is old alluvium, generally found on the higher parts of river floodplains. It often contains calcareous nodules called kankar. New alluvium is called Khadar and is renewed by annual floods. Exam tip: remember Bhangar = old alluvium; Khadar = new alluvium.

Long-term river deposition made these plains extensive. Exam tip: connect plain formation with river deposition.

The Northern Plains are considered about 2400 kilometres long. Exam tip: connect length with west to east spread.

The width of the Northern Plains is considered about 240 to 320 kilometres. Exam tip: keep length and width figures separate.

Alluvial deposits are the main formation base of the Northern Plains. Exam tip: connect alluvium with plain formation.

Fertile soil and level land help agriculture and settlement. Exam tip: connect population clue with fertile plains.

The Northern Plains are very useful for agriculture. Exam tip: connect alluvial soil with agriculture.

The Northern Plains are formed by deposits of Himalayan rivers. Exam tip: remember the relation between Himalayas and Northern Plains.

The Ganga Plain extends west to east in the middle part of the Northern Plains. Exam tip: treat it as a vast plain belt.

Punjab Plain is linked with the Indus system in north-western India. Exam tip: connect Punjab Plain with north-west.

Brahmaputra Plain is linked with north-eastern India and Assam region. Exam tip: remember Brahmaputra with north-east.

The Northern Plains are alluvial plain land. Exam tip: connect the word alluvial with Northern Plains.

Khadar is alluvial soil formed by new flood deposits. Exam tip: remember Khadar as new flood soil.

Bhangar consists of older alluvial deposits, generally found on higher parts of floodplains and often containing kankar nodules. Khadar consists of newer alluvium deposited repeatedly by rivers during floods and is usually more fertile. Therefore, the main difference is the age of the alluvial deposits. Exam tip: remember Bhangar = old alluvium; Khadar = new alluvium.

Bhabar is the narrow belt south of the Shiwalik foothills, made up of pebbles, boulders and coarse alluvial deposits. Therefore, Bhabar is the correct answer. Terai lies to its south and is a wet, marshy belt where streams that disappear in Bhabar re-emerge on the surface. Exam tip: link a pebbly or stony foothill belt with Bhabar.

South of Bhabar, streams re-emerge and form the Terai region. Exam tip: remember Terai after Bhabar.

The Terai is a wet, marshy belt lying south of the Shiwalik foothills in the Northern Plains. Water brought by streams and a high water table keep this region moist. Bhangar is a relatively higher area of older alluvium, so it is not as marshy as the Terai. Exam tip: words such as “marshy,” “wet,” or “south of the Shiwaliks” point to the Terai.

Rivers from the Himalayas bring alluvial deposits. Exam tip: link Himalayan rivers with plain formation.

The Northern Plains were formed largely by layers of alluvial sediments deposited by rivers such as the Indus, Ganga, and Brahmaputra. These deposits create broad, level surfaces with gentle slopes. Flat land is easier to plough, build fields on, and irrigate because water can be distributed more conveniently than on very steep slopes. The deep alluvial soil also supports important agricultural activities, although the question specifically asks about the ease created by the landform.

Option C is correct because the surface of the Northern Plains is generally level. A very steep slope would make cultivation and irrigation difficult, so option A gives the opposite condition. The plains are not completely rocky and are certainly not located in the sea, which rules out options B and D. The key link is simple: level alluvial land makes farming easier.

The main identity of the Northern Plains is their alluvial nature. Exam tip: remember Northern Plains when alluvial appears.