The Northern Plains

Correct answer: B. Indus, Ganga and Brahmaputra

The Northern Plains are formed by deposits of Indus, Ganga and Brahmaputra river systems. Exam tip: remember these three systems together.

Correct answer: C. Himalayas

The direct answer is C: the Northern Plains lie south of the Himalayas. Rivers descending from the Himalayas, especially the Indus, Ganga, and Brahmaputra systems, carry sediments and deposit them over a broad lowland. This creates the extensive Northern Plains between the Himalayan foothills and the Peninsular Plateau. Option C is correct because the Himalayas form the major northern boundary of these plains. Option A is wrong because the Aravalli range is in western India and does not form the northern boundary of the Northern Plains. Option B is wrong because the Western Ghats lie along the western edge of the Deccan region. Option D is wrong because the Nilgiri Hills are in southern India. The question asks for the major mountain system immediately north of the plains, so choose Himalayas. Memory cue: Himalayas above, alluvial Northern Plains below.

Correct answer: A. They are flat and fertile

The Northern Plains are fertile due to flat land and alluvial soil. Exam tip: connect agriculture clue with Northern Plains.

Correct answer: D. At the foothills of Himalayas

Bhabar is a pebble and gravel belt at Himalayan foothills. Exam tip: connect Bhabar with foothills.

Correct answer: A. Bhabar

Terai is found south of Bhabar as a moist and marshy region. Exam tip: remember the Bhabar-Terai order.

Correct answer: C. Punjab Plain

Punjab Plain is a major regional part of the Northern Plains. Exam tip: remember Punjab, Ganga and Brahmaputra plains.

Correct answer: D. Northern Plains

The Ganga Plain is an important part of the Northern Plains. Exam tip: connect it with alluvial and fertile region.

Correct answer: B. Flat

The surface of the Northern Plains is generally flat. Exam tip: understand flat land as useful for agriculture.

Correct answer: C. By rivers

Rivers bring soil and deposits to form alluvial plains. Exam tip: connect river deposits with alluvial soil.

Correct answer: A. About 240 to 320 kilometres

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

Correct answer: B. Peninsular Plateau

The Northern Plains lie north of the Peninsular Plateau and south of the Himalayas. Exam tip: remember the middle location.

Correct answer: C. River alluvial deposits

River alluvial deposits are the main basis of Northern Plains formation. Exam tip: study river, alluvium and plains together.

Correct answer: D. Fertile alluvial plains

The Northern Plains are extensive, level and fertile plains formed by alluvial deposits brought by the Indus, Ganga and Brahmaputra river systems. Therefore, ‘fertile alluvial plains’ is the correct identification. An old hard plateau refers to the Peninsular Plateau, while a sandy desert is associated with the Thar region. Exam tip: river-deposited alluvium is a key clue for the Northern Plains.

Correct answer: A. Sinks into pebbles and gravel

Streams sink into the coarse pebbly material of Bhabar. Exam tip: remember Bhabar with pebbles and gravel.

Correct answer: B. Because it is an area of new alluvium

The direct answer is B: Khadar is the area of new alluvial soil, commonly found in active flood plains. Rivers regularly overflow or change their channels and deposit fresh layers of fine silt, sand, and clay. Therefore Khadar is usually lower, younger, and more frequently renewed than Bhangar. Option B is correct because new alluvium is the defining feature of Khadar. Option A is wrong because Khadar is not a high mountain peak. Option C is wrong because it is not made of coral and is not an island. Option D is wrong because it is not a volcanic landform; its material is transported and deposited by rivers. Khadar may be fertile, although flood risk must also be considered. Memory cue: Khadar is new and near the river; Bhangar is older and generally higher.

Correct answer: C. It is a higher part with old alluvium

Bhangar is a relatively higher part with old alluvium. Exam tip: connect Bhangar with old alluvium.

Correct answer: D. Punjab, Ganga and Brahmaputra Plains

Punjab, Ganga and Brahmaputra Plains are regional parts of the Northern Plains. Exam tip: connect them with river systems.

Correct answer: A. Land between two rivers

Doab refers to the land lying between two rivers. In the Northern Plains, such areas are often fertile because rivers deposit alluvium there. A valley between two mountains is not called a doab. Exam tip: remember Doab as land between the waters of two rivers.

Correct answer: B. Land between rivers

The direct answer is B: a Doab is land lying between two rivers. The word can be understood as two river channels or two waters, and Punjab has many such tracts because several rivers flow across its plain. When the courses of two rivers enclose a piece of land, that interfluvial tract is called a Doab. Option B is correct because it states the geographical definition. Option A is wrong because sea waves may shape coasts but do not define Punjab’s Doabs. Option C is wrong because coral reefs are marine formations, not the basis of these inland tracts. Option D is wrong because lava flow creates volcanic landforms, whereas Doabs are related to river courses and alluvial plains. Doabs can have fertile soils because rivers deposit alluvium. Memory cue: Doab means do plus aab—land between two waters.

Correct answer: C. Khadar

Khadar is linked with flood plains and new alluvium. Exam tip: remember Khadar as an area near rivers.

Correct answer: A. Flat and fertile land

Flat and fertile land supports settlement and agriculture. Exam tip: remember the relation between fertile plains and population.

Correct answer: B. High agricultural production

The fertile soil of Northern Plains supports high agricultural production. Exam tip: connect agricultural importance with alluvial soil.

Correct answer: C. Alluvium

The Northern Plains were formed mainly by the deposition of alluvium brought by the Indus, Ganga and Brahmaputra river systems. Alluvium includes sediments such as sand, silt and clay, so it is the correct answer. Lava comes from volcanoes, while coral is formed by marine organisms. Exam tip: fertile soil deposited by rivers is called alluvium.

Correct answer: D. Fertile alluvial plains south of Himalayas

The Northern Plains are fertile alluvial plains south of the Himalayas. Exam tip: remember both location and soil.

Correct answer: A. Flat land

The Northern Plains were formed mainly by deposits brought by rivers such as the Indus, Ganga, and Brahmaputra and their tributaries. These deposits create broad, level surfaces made of alluvial soil. Flat land is easier to plough, build canals on, irrigate, and connect with roads and settlements than steep or broken land. For this reason, the Northern Plains support extensive agriculture and have a high population density.

Option A is correct because level ground is the most convenient type of land for farming in this region. A high snowy peak is steep and cold, a coral island is a marine landform, and a deep sea trench lies under the ocean. These landforms do not provide the broad, accessible agricultural surface characteristic of the Northern Plains.