Geography of Indian Drainage Systems

The two major groups are the Himalayan rivers and the Peninsular rivers.

A drainage basin is the area drained by a single river.

Himalayan rivers are perennial, receiving water from both rain and melted snow.

<p>Elevated areas, such as mountains, separate two drainage basins and are known as water divides.</p> Signup and view all the answers

<p>The broad relief features of the subcontinent primarily control India's drainage systems.</p> Signup and view all the answers

<p>They differ in their hydrological behavior, with Himalayan rivers being perennial while many Peninsular rivers are seasonal.</p> Signup and view all the answers

<p>Snowmelt contributes to the perennial nature of Himalayan rivers by providing consistent water flow throughout the year.</p> Signup and view all the answers

<p>The primary objective of the NRCP is to improve the water quality of rivers in India through pollution abatement work.</p> Signup and view all the answers

<p>Lakes help regulate river flow by absorbing excess rainwater, which prevents flooding.</p> Signup and view all the answers

<p>Urbanization and industrialization lead to increased pollution loads and reduce the self-cleansing capacity of rivers, worsening water quality.</p> Signup and view all the answers

<p>Rivers are essential for various economic activities, providing water for irrigation, navigation, and hydro-power generation.</p> Signup and view all the answers

<p>Lakes moderate the climate of surrounding areas by influencing local temperature and humidity levels.</p> Signup and view all the answers

<p>Maharashtra, Chhattisgarh, Jharkhand, and Odisha.</p> Signup and view all the answers

<p>About 1400 km.</p> Signup and view all the answers

<p>The Tungabhadra, Koyana, Ghatprabha, Musi, and Bhima.</p> Signup and view all the answers

<p>The Brahmagri range of the Western Ghats.</p> Signup and view all the answers

<p>About 760 km.</p> Signup and view all the answers

<p>Parts of Karnataka, Kerala, and Tamil Nadu.</p> Signup and view all the answers

<p>Glacial lakes.</p> Signup and view all the answers

<p>Spits and bars.</p> Signup and view all the answers

<p>They contain water only during the rainy season.</p> Signup and view all the answers

<p>Shivasamudram Falls.</p> Signup and view all the answers

<p>Devaprayag is significant because it is the confluence where the Alaknanda merges with the Ganga.</p> Signup and view all the answers

<p>The Bhagirathi-Hooghly flows southwards through the deltaic plains, while the mainstream Ganga flows south into Bangladesh.</p> Signup and view all the answers

<p>Major tributaries of the Ganga include the Yamuna, Ghaghara, Gandak, and Kosi.</p> Signup and view all the answers

<p>The Sundarban Delta is the world's largest and fastest-growing delta, formed by the confluence of the Ganga and Brahmaputra.</p> Signup and view all the answers

<p>The Yamuna river originates from the Yamunotri Glacier in the Himalayas.</p> Signup and view all the answers

<p>The estimated length of the Ganga river is over 2500 km.</p> Signup and view all the answers

<p>The Himalayas serve as the source for many tributaries of the Ganga, such as the Yamuna and Ghaghara.</p> Signup and view all the answers

<p>The Meghna river is formed by the confluence of the Ganga and the Brahmaputra, and it flows into the Bay of Bengal.</p> Signup and view all the answers

<p>The Sundarban Delta is named after the Sundari tree, which thrives in marshy conditions.</p> Signup and view all the answers

<p>The Sambhar Lake is a saltwater lake used primarily for salt production.</p> Signup and view all the answers

<p>The Wular Lake in Jammu and Kashmir is the largest freshwater lake, formed due to tectonic activity.</p> Signup and view all the answers

<p>Most freshwater lakes in India are of glacial origin, formed by glaciers digging out basins filled by snowmelt.</p> Signup and view all the answers

<p>The Damoder and the Brahmani rivers are notable examples flowing towards the east.</p> Signup and view all the answers

<p>Only 3 percent of the world's water is freshwater.</p> Signup and view all the answers

<p>Rivers are dammed for hydropower generation, leading to the formation of artificial lakes.</p> Signup and view all the answers

<p>Tourists often enjoy boating on Dal Lake in Kashmir.</p> Signup and view all the answers

<p>The Ganga Action Plan (GAP) was launched in 1985 to tackle river pollution.</p> Signup and view all the answers

<p>Three-quarters of the 3 percent of freshwater is trapped as ice.</p> Signup and view all the answers

<p>Dal Lake and Loktak Lake are two significant lakes in India.</p> Signup and view all the answers