NCERT Solutions for Class 10 Social Science - Contemporary India – II Chapter 3 Water Resources

NCERT Solutions for Class 10 Social Science - Contemporary India – II Chapter 3 - Water Resources

Welcome to the Chapter 3 - Water Resources, Class 10 Social Science - Contemporary India – II NCERT Solutions page. Here, we provide detailed question answers for Chapter 3 - Water Resources. The page is designed to help students gain a thorough understanding of the concepts related to natural resources, their classification, and sustainable development.

Our solutions explain each answer in a simple and comprehensive way, making it easier for students to grasp key topics Water Resources and excel in their exams. By going through these Water Resources question answers, you can strengthen your foundation and improve your performance in Class 10 Social Science - Contemporary India – II. Whether you’re revising or preparing for tests, this chapter-wise guide will serve as an invaluable resource.

Exercise 1

Q 1:

Multiple choice questions.

(i) Based on the information given below classify each of the situations as ‘suffering from water scarcity’ or ‘not suffering from water scarcity’.
a) Region with high annual rainfall.
b) Region having high annual rainfall and large population.
c) Region having high annual rainfall but water is highly polluted.
d) Region having low rainfall and low population.

(ii) Which one of the following statements is not an argument in favour of multipurpose river projects?
a) Multi-purpose projects bring water to those areas which suffer from water scarcity.
b) Multi-purpose projects by regulating water flow help to control floods.
c) Multi-purpose projects lead to large scale displacements and loss of livelihood.
d) Multi-purpose projects generate electricity for our industries and our homes.

iii) Here are some false statements. Identify the mistakes and rewrite them correctly.
a) Multiplying urban centres with large and dense populations and urban life styles have helped in proper utilisation of water resources.
b) Regulating and damming of rivers does not affect the river's natural flow and its sediment flow.
c) In Gujarat, the Sabarmati basin farmers were not agitated when higher priority was given to water supply in urban areas, particularly during droughts.
d) Today in Rajasthan, the practice of rooftop rainwater water harvesting has gained popularity despite high water availability due to the Indira Gandhi Canal.

(i)

a) Not suffering from water scarcity.
b) Suffering from water scarcity.
c) Suffering from water scarcity.
d) Not suffering from water scarcity.

(ii)

c) Multi-purpose projects lead to large scale displacements and loss of livelihood.

(iii)

a) Multiplying urban centres with large and dense populations and urban lifestyles have resulted in improper and caused over exploitation of water resources.
b) Regulating and damming of rivers affect the river's natural flow and causes the sediment flow which settles at the bottom of the reservoir.
c) In Gujarat, the Sabarmati basin farmers were agitated when higher priority was given to water supply in urban areas, particularly during droughts.
d) Today in Rajasthan, the practice of rooftop rainwater water harvesting is declining due to high water availability from Indira Gandhi Canal.

Q 2:

Answer the following questions in about 30 words.

(i) Explain how water becomes a renewable resource.
(ii) What is water scarcity and what are its main causes?
(iii) Compare the advantages and disadvantages of multi-purpose river projects.

i) Water cycle process that includes three steps i.e. evaporation, condensation and precipitation. All water that is used primarily ends up in the sea entering the hydrological cycle the water that disappears from the surface of the earth due to evaporation comes back in the form of rain. This is the never ending process which makes it a renewable resource.

(ii) Water scarcity occurs where there is not enough water availability to match the demand due to lack of fresh water demand.

It is caused by a growing population, unequal distribution of water, growing demand for water, over exploitation etc.

(iii) Advantages of multi-purpose river projects:

Multipurpose river projects help in electricity generation, irrigation, inland navigation, water supply for industrial flood control, fish breeding tourist attraction and domestic purposes.

Disadvantages of multi-purpose river projects:

Many native villages are submerged and people lose their livelihoods with little or no hope of rehabilitation. The local flora and fauna get destroyed.

Q 3:

Answer the following questions in about 120 words.

(i) Discuss how rain water harvesting in semi-arid regions of Rajasthan is carried out.
(ii) Describe how modern adaptations of traditional rainwater harvesting methods are being carried out to conserve and store water.

1. In the semi arid and arid regions of rajasthan, particularly in Bikaner , phalodi amd barmer, almost all the houses traditionally had underground tanks or tankas for storing drinking water. The takes could be as large as a big room. The tankas were part of the well developed rooftop rainwater harvesting system and were built inside the main houses through a pipe. Rain falling on the rooftops would travel down the pipe and was stored in these underground tankas. The first spell of rain was usually not collected as this would clean the roofs and the pipes. The rainwater from the subsequent showers was the collected. The rainwater can be stored in the tankas till the next rainfall making it an extremely reliable sources of drinking water when all other sources are dried up particularly summer.

2. fortunately in many parts of rural and urban india, rooftop rainwater harvesting is being successfully adapted to store and conserve water. In gendathur a remote backward village in mystore Karnataka villagers have installed in their households rooftop rainwater harvesting system to meet their water needs. Nearly 200 household have installed this system and the village has earned the rare distinction of being rich in rainwater. Rainwater harvesting is once again being conserved through modern adaption. Rainwater running down from the roofs is not fed into drains. Instead it is piped into underground reservoirs.

Frequently Asked Questions about Water Resources - Class 10 Social Science - Contemporary India – II

- 1. How many questions are covered in Water Resources solutions?
- All questions from Water Resources are covered with detailed step-by-step solutions including exercise questions, additional questions, and examples.
- 2. Are the solutions for Water Resources helpful for exam preparation?
- Yes, the solutions provide comprehensive explanations that help students understand concepts clearly and prepare effectively for both board and competitive exams.
- 3. Can I find solutions to all exercises in Water Resources?
- Yes, we provide solutions to all exercises, examples, and additional questions from Water Resources with detailed explanations.
- 4. How do these solutions help in understanding Water Resources concepts?
- Our solutions break down complex problems into simple steps, provide clear explanations, and include relevant examples to help students grasp the concepts easily.
- 5. Are there any tips for studying Water Resources effectively?
- Yes, practice regularly, understand the concepts before memorizing, solve additional problems, and refer to our step-by-step solutions for better understanding.

Exam Preparation Tips for Water Resources

The Water Resources is an important chapter of 10 Social Science - Contemporary India – II. This chapter’s important topics like Water Resources are often featured in board exams. Practicing the question answers from this chapter will help you rank high in your board exams.

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