Major Physiographic Divisions

The Aravalli is a major range associated with the Central Highlands. Exam tip: connect Aravalli with the northern part of the Peninsular Plateau.

The direct answer is D, the Indian Desert. Sand dunes are hills or ridges of loose sand formed when wind moves and deposits sand. The Indian Desert, commonly called the Thar Desert, is a hot, dry region where little rainfall and strong winds allow dunes to develop. Option D is correct because sand dunes are a characteristic landform of this desert. Option A, Coastal Plains, may have beaches and coastal sand, but the question asks for the physical division where desert sand dunes are commonly found. Option B, Island Groups, are surrounded by water and are not the usual answer for inland desert dunes. Option C, the Himalayas, are high mountains with different rocky and snowy landforms, not a typical dune region. Step by step: identify ‘sand dunes’, connect them with wind and dry desert, then choose Indian Desert. Memory cue: dunes = dry wind = Thar.

Coastal Plains are mainly divided into Western and Eastern Coastal Plains. Exam tip: remember the names of both coasts.

The Western and Eastern Ghats are connected with the edges of the Peninsular Plateau. Exam tip: connect the Ghats with plateau margins.

The Himalayas and Northern Plains are major landforms connected with northern India. Exam tip: remember the physical structure of North India separately.

Coastal Plains lie along sea coasts and Island Groups are located in the sea. Exam tip: remember sea-related landforms separately.

The Peninsular Plateau extends over central and southern India. Exam tip: remember it as India’s main plateau region.

Himadri Himachal and Shiwalik are the main Himalayan ranges. Exam tip: remember their order from north to south.

The direct answer is A: alluvial soil is found there. The Northern Plains were formed mainly by sediments deposited by the Indus, Ganga and Brahmaputra river systems and their tributaries. These fine deposits are called alluvium. Rivers renew the soil in many places, and the level land plus water availability supports farming, so the plains are highly fertile. Option A is correct. Option B, only sand, is false because the plains contain rich alluvial deposits, not only sand. Option C, no river, is the opposite of reality; many rivers built and nourish these plains. Option D, sea surrounding the land, is false because the Northern Plains are inland, though some southern and eastern margins approach coastal areas. Memory cue: fertile plains usually point to river-made alluvium.

Andaman and Nicobar are located in the Bay of Bengal. Exam tip: remember Andaman and Nicobar for the Bay of Bengal.

The Indian Desert is the dry region of western India. Exam tip: remember the dry region and Thar together.

The direct answer is B, the Eastern Coastal Plain. A delta forms where a river slows down near its mouth and deposits silt, sand, and clay. India’s eastern coast is broad and comparatively gentle, so large rivers such as the Mahanadi, Godavari, Krishna, and Kaveri can build large deltas there. Reasoning step by step: rivers carry sediment; their speed decreases near the sea; sediment is deposited; a triangular or fan-shaped delta develops; the eastern coastal plain provides the important setting for these deltas. Option A, the Western Coastal Plain, is narrow and has many estuaries because rivers descend quickly to the Arabian Sea, so it is less associated with large deltas. Option B is correct because the eastern coast contains major deltaic plains. Option C, the Northern Mountains, are the source region of many rivers, but they are not the coastal depositional plain where these deltas form. Option D, the Indian Desert, is dry and inland, so it cannot be the main eastern coastal delta region. Remember: east coast is broad, rivers deposit, and deltas grow.

The direct answer is A, Himalayan Mountains. The Himalayas contain some of the world’s highest peaks and many glaciers because they are extremely high and receive snow in their colder upper regions. Glaciers are long-lasting masses of ice that slowly move and feed important rivers. Option A is correct because both clues—high peaks and glaciers—strongly identify the Himalayas. Option B, Northern Plains, are low, level alluvial lands and do not contain the country’s high glacial peaks. Option C, Coastal Plains, are lowlands beside the sea and have a warmer coastal setting. Option D, Island Groups, contain islands in the sea, not the great high mountain and glacier system described here. Exam cue: very high peaks plus glaciers = Himalayas.

Bhabar Terai Bhangar and Khadar are terms connected with the Northern Plains. Exam tip: remember plain subparts together.

The Central Highlands and Deccan Plateau are major parts of the Peninsular Plateau. Exam tip: remember the two parts of the plateau.

Coastal Plains are found as long strips along the sea coast. Exam tip: remember the relation between coast and plains.

The direct answer is B: the Indian Desert is a dry region of western India. A desert receives little rainfall compared with wetter regions, so its vegetation is sparse and the land is commonly sandy. India’s Indian Desert or Thar Desert lies mainly in the west, especially Rajasthan. Option A is wrong because a very high-rainfall area is the opposite of a desert’s usual climate. Option B is correct because it gives both essential clues: western location and dryness. Option C is wrong because the Indian Desert is a land region, not an island in the Bay of Bengal. Option D is wrong because the Himalayas are young fold mountains in northern India, not the desert. The reasoning is therefore: Indian Desert → western India → low rainfall and dry conditions. Memory cue: west plus dry plus sandy usually points to the Thar Desert.

A metropolitan region is not a major physiographic division of India. Exam tip: distinguish physical landforms from human settlements.

The Peninsular Plateau is considered the ancient landmass of India. Exam tip: connect it with old hard rocks.

Himalayan Mountains and Northern Plains are both major physiographic divisions. Exam tip: remember the list of major divisions.

Major physiographic divisions give the basic list for understanding India’s geographical structure. Exam tip: first remember the six main divisions.

The Himalayas are mountains while the Peninsular Plateau is an old plateau region. Exam tip: remember the difference between mountains and plateaus.

Island groups are separate land areas located in the sea. Exam tip: treat Andaman Nicobar and Lakshadweep as examples of island groups.

The key physical-geography concept is the definition of an island. An island is a naturally occurring land area surrounded by water on every side; a collection of islands is called an archipelago or island group. Therefore, the division that represents land areas surrounded by water is Islands, making option B correct. The Northern Plains are extensive lowlands formed largely by river-deposited alluvium and are connected with the mainland. The Himalayas are a high mountain system, and the Indian Desert is a dry, sandy region; neither is enclosed by water. The question asks for the landform’s defining relationship with water, so the answer should be selected from that definition rather than from the size, relief, or climate of the region.