Major Physiographic Divisions

The Himalayas and Northern Plains are inland land-based physiographic divisions. Exam tip: separate maritime and land clues.

The Himalayas form a vast mountain region in northern India. Exam tip: understand the Himalayas as the northern mountain boundary.

The governing concept is the formation and significance of the Northern Plains as broad alluvial lowlands. Rivers such as the Indus, Ganga and Brahmaputra, together with their tributaries, have deposited layers of fertile silt over a long period. This process created a generally level and extensive plain that supports intensive agriculture, dense settlement, transport routes and many cities. Option B describes islands, option C describes a dry desert environment, and option D describes high mountain peaks; none explains the main physical importance of this division. Hence option A is correct because it combines the two key characteristics: fertility and broad flat terrain.

The Peninsular Plateau is India's old rocky landmass. Exam tip: study it as an ancient stable part.

The Indian Desert is identified by dryness and sandy areas. Exam tip: connect desert with low rainfall.

Coastal Plains are level land along the sea. Exam tip: remember coast and level land together.

An island is a piece of land that is completely surrounded by water. A group of such islands is called an island group or archipelago. The surrounding water may be seawater, as around many coastal islands, or inland water, as around an island in a lake. This defining relationship between land and water is more important than climate, surface colour, or the presence of plants.

The clue in the question asks for the feature used to identify island groups. Land areas surrounded by water match the definition exactly, so option A is correct. Snow-covered plains, dry plateaus, and sand dunes describe possible landscapes but do not define islands. A place may have sand, rocks, or vegetation, but it is identified as an island because water surrounds it on all sides.

India's six divisions can be understood as mountains plains plateau desert coast and islands. Exam tip: revise them in order.

India's major physiographic divisions show its physical diversity. Exam tip: remember all six divisions together.

The Himalayan Mountains are located in the northern part of India. Exam tip: connect the north direction with the Himalayas.

The Northern Plains are fertile plains made of alluvial soil brought by rivers. Exam tip: connect plains with fertile land.

The Peninsular Plateau is considered an ancient and stable landmass of India. Exam tip: remember plateau for old landmass.

The Indian Desert is located in the western part of India. Exam tip: connect the desert with the west direction.

Coastal Plains spread along the sea. Exam tip: connect the word coastal with the sea shore.

Andaman and Nicobar are part of India's island groups. Exam tip: also connect them with the Bay of Bengal.

India is commonly divided into six major physiographic divisions. Exam tip: remember the list of six divisions.

The Himalayas are a major example of a mountain physiographic division. Exam tip: connect Himalayas with mountains.

The Northern Plains are formed by deposits of the Ganga, Indus, Brahmaputra and their tributaries. Exam tip: connect alluvial plains with these rivers.

The Peninsular Plateau is an elevated landmass with hard rocks. Exam tip: connect plateau with elevated flat land.

The Western Coastal Plains lie along the Arabian Sea. Exam tip: connect the western coast with the Arabian Sea.