Page 37 - EM SOCIAL NOTES 10TH CLASS PSR DIGITAL BOOKS

5. INDIAN RIVERS AND WATER RESOURCES

1 MARK QUESTION & ANSWERS

1. Name the twin sources of Ganga. (AS1)
A. River Ganga has twin sources. They are Bhagirathi and
Alakananda.
2. Where do rivers Bhagirathi and Alakananda join? (AS1) lesson related videos
A. Bhagirathi and Alakananda join at Deva Prayag to form Ganga.
3. What is the name of Brahmaputra Tibet? (AS1)
A. Tsangpo.
4. Name the largest peninsular river system. (AS1)
A. The Godavari.
5. Name the source of the Godavari. (AS1)
River Ganga
A. Nasik Triambak in Maharashtra.
6. Which river is the major tributary of the Krishna river? (AS1)
A. Tungabhadra is the major tributary of the Krishna river.
7. Which mineral available in Kudremukh? (AS1)
A. Iron
8. Which mineral available in Sandur? (AS1)
A. Manganese
9. Why the water storage capacity of Tungabhadra dam is
decreasing? (AS1)
1. Accumulation of silt, 2. Deforestation, Mining.
10. What are the drainage physiographic units in India? (AS1) River system In India
A. India has 3 drainage physiographic units: 1. The Himalayas 2.
Peninsular plateau 3. The Indo-Gangetic plain.
11. Give examples of Himalayan Rivers. (AS1)
A. The three Himalayan Rivers 1. Indus 2. Ganga 3. Brahmaputra.
12. What is Evaporation? (AS1)
A. 1. The turning of water into vapour, takes place all the time in
water bodies.
2. It can happen to any exposed surface water, such as lakes, rivers,
2. It can happen to any exposed surface water, such as lakes, rivers, River Indus
seas etc.
13. What is Evapotranspiration? (AS1)
A. The total amount of water added to the atmosphere from both
evaporation and transpiration.
14. Define Ground Water. (AS1)
A. Ground water is the water that is found beneath the earth's surface.
15. ‘Sustaining underground water becomes a question to all’.
What are the measures do you suggest to increase the
underground water levels? (AS2) River Ganga
1. Use pipelines instead of canals.
2. By using drip irrigation.
3. By constructing percolating pits
16. Define Drainage. (AS1)
A. The natural removal of surface and sub-surface water from an area.
17. Define Drought. (AS1)
A. A prolonged period of abnormally low rainfall, leading to a
shortage of water.
18. What is a ‘Doab’? (AS-1)
River Ganga
A. Two rivers.
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