Physiography Of India

Indus, Ganga, and Brahmaputra

The Northern Plains are formed by the deposition of sediments from Indus, Ganga, and Brahmaputra river systems. Step 1: These three major river systems originate from the Himalayas and carry huge amounts of sediments. Step 2: Over millions of years, these rivers deposited alluvial soil creating the fertile Northern Plains. Step 3: The Indus system forms the western plain, while Ganga-Brahmaputra system forms the eastern plain. Step 4: This alluvial deposition makes the region one of the most fertile areas in the world. Other options include peninsular rivers which don't contribute to Northern

Narmada

The Narmada river divides the Peninsular Plateau into two parts. Step 1: The Narmada flows east to west through central India. Step 2: It separates the Central Highlands in the north from the Deccan Plateau in the south. Step 3: The river flows between the Vindhya and Satpura mountain ranges. Step 4: This division creates distinct geographical and geological regions with different characteristics. Godavari, Krishna, and Kaveri are major peninsular rivers but they don't divide the plateau into major parts.

The Great Indian Desert

The Thar Desert is also known as the Great Indian Desert. Step 1: It is located in western India, mainly in Rajasthan and parts of Gujarat. Step 2: It is the ninth largest desert in the world by area. Step 3: The desert experiences arid and semi-arid climate conditions with very low rainfall (less than 150mm annually). Step 4: The name 'Great Indian Desert' reflects its significance as India's largest desert region. While it's located in Rajasthan, 'Rajasthan Desert' is not its official alternate name.

Eastern Coastal Plain

The Eastern Coastal Plain is wider than the Western Coastal Plain. Step 1: The Eastern Coastal Plain has an average width of about 120 km along the Bay of Bengal. Step 2: The Western Coastal Plain is much narrower, only 10-20 km wide along the Arabian Sea. Step 3: This difference is due to the geological structure and the proximity of Western Ghats to the western coast. Step 4: The wider eastern plain allows for larger river deltas and more extensive agricultural activities. The Western Coastal Plain is constrained by the nearby Western Ghats mountain range.