I need some of these important questions for a test.
(1) What is meant by a water divide? Give an example. ii) Which is the largest river basin in India? (iii) Where do the rivers Indus and Ganga have their origin? iv ) Name the two headstreams of the Ganga. Where do they meet to form the Ganga? (v) Why does the Brahmaputra in its Tibetan part have less silt, despite a longer course? (vi) Which two Peninsular rivers flow through trough? (vii) State some economic benefits of rivers and lakes.
(1) What is meant by a water divide? Give an example. ii) Which is the largest river basin in India? (iii) Where do the rivers Indus and Ganga have their origin? iv ) Name the two headstreams of the Ganga. Where do they meet to form the Ganga? (v) Why does the Brahmaputra in its Tibetan part have less silt, despite a longer course? (vi) Which two Peninsular rivers flow through trough? (vii) State some economic benefits of rivers and lakes.
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Verified answer
(1) A water divide is a geographical feature that separates the flow of water between two different drainage basins. An example of a water divide is the Great Divide in North America, which separates the flow of water between the Pacific Ocean and the Atlantic Ocean.
(ii) The largest river basin in India is the Ganga-Brahmaputra-Meghna river basin.
(iii) The river Indus originates in the Tibetan Plateau in China, and the river Ganga originates in the Gangotri Glacier in Uttarakhand, India.
(iv) The two headstreams of the Ganga are the Bhagirathi and the Alaknanda. They meet at Devprayag in Uttarakhand to form the Ganga.
(v) The Brahmaputra in its Tibetan part has less silt because the river flows through a high altitude region with steep slopes, which reduces the amount of sediment it can carry.
(vi) The two Peninsular rivers that flow through troughs are the Narmada and the Tapi.
(vii) Rivers and lakes provide various economic benefits, such as a source of freshwater for agriculture, drinking water, and industrial use. They also support fishing and aquaculture industries, provide transportation routes, and offer recreational opportunities like boating and tourism.
Answer:
(1) A water divide is a geographical feature that separates the flow of water between two different drainage basins. An example of a water divide is the Great Divide in North America, which separates the flow of water between the Pacific Ocean and the Atlantic Ocean.
(ii) The largest river basin in India is the Ganga-Brahmaputra-Meghna river basin.
(iii) The river Indus originates in the Tibetan Plateau in China, and the river Ganga originates in the Gangotri Glacier in Uttarakhand, India.
(iv) The two headstreams of the Ganga are the Bhagirathi and the Alaknanda. They meet at Devprayag in Uttarakhand to form the Ganga.
(v) The Brahmaputra in its Tibetan part has less silt because the river flows through a high altitude region with steep slopes, which reduces the amount of sediment it can carry.
(vi) The two Peninsular rivers that flow through troughs are the Narmada and the Tapi.
(vii) Rivers and lakes provide various economic benefits, such as a source of freshwater for agriculture, drinking water, and industrial use. They also support fishing and aquaculture industries, provide transportation routes, and offer recreational opportunities like boating and tourism.
Explanation: