To Download PDF
Please verify your Whatsapp number first,
so you can download this pdf immediately
![](https://cdn.prod.website-files.com/5f5cf462f0ee5f4a999616bb/6597ba4553aab5ce1cf16062_1211.webp)
Answer the following questions briefly.
(i) 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 are Bhagirathi and Alaknanda. They both meet at Devprayag 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.
(i) When any elevated area, such as a mountain or an upland, separates two drainage basins, such an upland is known as a water divide. For example; Ambala is located like a water divide between Indus and Ganga Basin.
(ii) The largest river basin in India is the Ganga river basin which is spread over 8,61,404 sq. km. area.
(iii) The Indus river originates near Tibbet, Near Mansarovar Lake and the Ganga river originates from the Gangotri Glacier and is joined by the Alaknanda at Devprayag in Uttarakhand.
(iv) The two headstreams of the Ganga are Bhagirathi and Alaknanda. They both meet at Devprayag to form the Ganga.
(v) The Brahmaputra in its Tibetan part has less silt, despite a longer course because, in Tibet, it carries smaller amount of water as it is a dry and cold area. While in India, it carries a large volume of water and silt because it passes through a region of high rainfall.
(vi) Tapi and Narmada are the two peninsular rivers which flow through a trough.
(vii) Lakes:
Rivers: