NCERT Class 10 Geography Third Chapter Water Resources Solution
NCERT Class 10 Geography Chapter 3 Solution: Dear students Here in this post we are posted Third Chapter Water Resources full exercise questions & answer by our arts teacher. This Solution is helpful for CBSE English medium students. Download this 3rd Chapter Geography solution & prepare your homework.
MULTIPLE CHOICE QUESTIONS:
(i) Based on the information given below classifies each of the situations as “suffering from water scarcity” or not suffering from water scarcity.
(a) Region with high annual rainfall- not suffering from water scarcity.
(b) Region having high annual rainfall and large population – suffering from water scarcity.
(c) Region having high annual rainfall but water is highly pullulated –suffering from water scarcity.
(d) Region having low rainfall and low population – not suffering from water scarcity.
Answer:
(ii) Which one of the following statements is not an argument in favour of multipurpose river projects?
(a) Multipurpose projects bring water to those areas which suffer from water scarcity.
(b) Multipurpose projects by regulating water flow helps to control floods.
(c) Multipurpose projects lead to large scale displacements and loss of live hood
(d) Multipurpose projects generate for our industries and our homes.
Answer: Multipurpose projects lead to large scale displacements and loss of live hood.
(iii) Here are some false statements. Identify the mistake and rewrite them correctly.
(a) Multiplying urban centres with large and dance populations and urban lifestyles have helped in proper utilisation of water resources.
Answer:
Multiplying urban centres with large and dance population and urban lifestyles causes exes use of water resources.
(b) Regulating and damming of rivers does not affect the river’s natural flow and it’s sediment flow.
Answer:
Regulating and damming of rivers affect the natural flow of rivers and its sediment flow.
(c) In Gujrat, the Sabarmati basin forms were not agitated when higher priority was given to water supply in urban area’s particularly during droughts.
Answer:
In Gujarat the Sabarmati basin farmers were agitated when higher priority was given to water supply in urban areas particularly during droughts.
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(d) Today in Rajasthan the practice of rooftop rainwater water harvesting has gained popularity despite high water availability due to the Indira Gandhi Canal
Answer:
Today in Rajasthan, the practice of rooftop rainwater harvesting is on the decline due to the Rajasthan canal,
2.) ANSWER THE FOLLOWING QUESTIONS IN ABOUT 30 WORDS:
(i) Explain how water becomes a renewable resource.
Answer:
The world is covered with water (sea). From, there it enters the hydrological cycle in the form of water vapours. Water continually being renewed and recharged through the hydrological cycle. So water is renewable resource.
(ii) What is water scarcity and what are its main causes?
Answer:
When the demand are of water is not fulfilled this know as scarcity of water.
Reasons of scarcity of water are – High population, Industrialization, growing demands of water, exes use of water, water pollution.
(iii) Compare the advantage and disadvantages of Multi-purpose river projects.
Answer:
Advantage:
Due to multi-purpose river project water supply for domestic, food control, irrigation reaction is available.
It’s help to grow village economy with rapid industrialisation
Dis-advantage:
Due to multi-purpose project natural flow of water of river are affected. It’s also induced earthquakes, caused water-borne diseases multi- purpose project also disturb local flora and fauna, also Introduce problem of rehabilitation.
3.) ANSWER THE FOLLOWING QUESTION IN ABOUT 120 WORDS:
(i) Discuss how rainwater harvesting in semi-arid regions of Rajasthan is carried out?
Answer:
Rajasthan is a region with low rainfall, hence the people of Rajasthan harvesting rainwater for drinking and various purpose. In the semi-arid and arid region of Rajasthan, particularly in Bikaner, Phalodi and Barmer, almost all the houses traditionally had underground tank or tankas for storing drinking water. The tank could be as large as big room. The tanks were part of the well developed rooftop rainwater harvesting system and were built inside the, main house or the courtyard. They connected to the slopping roofs of the house through a pipe. Rain falling on the rooftops would travel down the pipe and was stored in these underground ‘Tankas’.
(ii) Describe how modern adaptations of traditional rainwater harvesting methods are being out to conserve and store water?
Answer:
- The rooftop rainwater harvesting system which is adapting in modern harvesting.
- Rooftop rainwater harvesting is being successfully adapted to store and conserve water.
- In Gendathur, a remote backward village in Mysure, Karnataka, villagers have installed, in their households rooftop rainwater harvesting system to meet their water need.
- Rooftop rainwater harvesting is the most common practice in Shillong.
- Shillong receive the highest rainfall in the world, Yet the state capital faces shortage of water.
- Nearly every household in city has a rooftop rainfall harvesting structure.
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