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. 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?
wii) State some economic benefits of rivers and lakes.
I will mark you as brainliest if you give all correct!!
Answers
Answer:
i) A line which separates two adjacent drainage basins is known as a water divide. Precipitation on either side of the line travels in different or opposing directions. It is the separation between neighboring water basins, for example, Ambala water divide.
ii)Ganga basin
iii)River Indus originates near lake Mansarowar in Tibet and Ganga originates from Gangotri glacier.
iv)River Narmada and Tapi are the two Peninsular rivers which flow through trough.
v)The Brahmaputra river, which is known as Tsangpo in Tibet, receives very little volume of water in Tibet so it has less silt there. As such in India, it carries a large volume of water and larger amount of silt.
vi)River Narmada and Tapi are the two Peninsular rivers which flow through trough.
vii) Rivers and lakes are of a great value to human beings. They help to develop hydel power, provide water for irrigation, drinking, industries and they help to develop fisheries. They will enhance natural beauty and help in the development of tourism and provide recreation.
Economic benefits of rivers:
1. Rivers are harnessed for the generation of hydroelectricity.
2. Rivers provide water for irrigation and make the soil fertile.
3. They are used for the means of transportation.
4. They contain sweet water which is necessary for the survival of plants and animals.
5. Fisheries flourish on the banks of rivers. Thus, they serve as arteries of commerce.
Economic benefits of lakes:
1. Lakes enhance the scenic beauty of a place.
2. They help to develop tourism and play as an important of recreation activities.
3. They help in inland navigation and transportation.
Explanation:
Plz mark as brainliest
Answer: 1. any elevated area, such as a mountain or an upland, separating two drainage basins. Example: Ambala water divide is located between indus and ganga river systems.
2. Ganga basin is the largest in India.
3. Indus originates near maansarovar lake in Tibetan plateau and ganga originates from gangotri glacier.
4. The 2 headstreams are Bhagirathi and alaknanda. They meet at devprayag to form ganga.
5. Tibet us a very cold and dry area. Thus, the river receives very less rainfall and carries less amount of water leading to a very less silt content despite a larger course.
6. Narmada and Tapi
7. Rivers and lakes are of a great value to human beings. They help to develop hydel power, provide water for irrigation, drinking, industries and they help to develop fisheries. They will enhance natural beauty and help in the development of tourism and provide recreation.