Water Resources Class 10 Questions and Answers Provided helps you to answer complex Questions too easily. You can use them while preparing for board exams and all of them are given by subject experts. Reading NCERT Solutions for Class 10 Social Science Geography Chapter 3 Water Resources familiarizes you with the kind of questions appearing in the board exams. Students are advised to read these solutions on a regular basis to score well.
Water Resources Class 10 Questions and Answers Geography Chapter 3
Make your learning experience enjoyable by preparing from the quick links available on this page. Use the Class 10 SST Geography Chapter 3 NCERT Solutions and get to know different concepts involved. All the Solutions are covered as per the latest syllabus guidelines. Knowing the NCERT Class 10 Geography Chapter 3 Questions and Answers helps students to attempt the exam with confidence.
Water Resources NCERT Intext Questions and Answers
Question 1.
From your everyday experiences, write a short note on how you can conserve water.
Answer:
Water conservation is the only way to overcome the problem of its scarcity.
There are several ways in which we can conserve water:
- Turn off the tap while brushing your teeth.
- Place a cistern displacement device in your toilet cistern to reduce the volume of water used in each flush.
- Use less water in bathing, washing and cleaning.
- Low-cost water harvesting devices should be adopted.
- Every house should have rainwater harvesting system.
- A dropping tap wastes much water. Hence, it should be fixed immediately.
- Taking shorter shower will be encouraged.
Question 2.
Find out other rainwater harvesting systems existing in and around your locality.
Answer:
- Water tanks built at different places in the locality.
- Village ponds that collect ample rainwater.
- Surface runoff harvesting
- Pits made in houses to collect rainwater.
Geography Class 10 Chapter 3 NCERT Textbook Questions and Answers
Question 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 multi-purpose river projects?
(a) Multi-purpose projects bring water to those areas which suffer from water scarcity.
(b) Multi-purpose projects by regulating water flow helps 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 lifestyles 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 Rajasthan Canal.
Answer:
(i) (a) Not suffering from water scarcity
(b) Not 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 caused the over-exploitation of water resources.
(b) Regulating and damming of rivers affect the river’s natural flow and its sediment flow.
(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 harvesting is on the decline due to the Rajasthan Canal.
Question 2.
Answer the following questions in about 30 words:
(i) Explain how water becomes a renewable resource.
Answer:
Freshwater is mainly obtained from surface run off and ground water. This water is continually being renewed and recharged through the hydrological cycle. All water moves within the hydrological cycle ensuring that water is a renewable resource.
(ii) What is water scarcity and what are its main causes?
Answer:
Water scarcity means shortage of water. It occurs when water availability does not match the demand for water.
The main causes of water scarcity are:
- Large and growing population and consequent greater demands for water, and unequal access to it.
- Ever-increasing number of industries which exert pressure on existing freshwater resources. Industries, apart from being heavy users of water, also require power to run them. Much of this energy comes from hydroelectric power.
(iii) Compare the advantages and disadvantages of multi-purpose river projects.
Answer:
Advantages of Multi-purpose river projects:
- They not only help in irrigation but also in electricity generation, water supply for domestic and industrial uses.
- They help in flood control, recreation, inland navigation and fish breeding.
- They are also associated with the development of agriculture and the village economy.
- Examples – In the Sutluj-Beas river basin, the Bhakra-Nangal project water is being used both for hydel power production and irrigation. Similarly, the Hirakud project in the Mahanadi basin integrates conservation of water with flood control.
Disadvantages of Multi-purpose river projects
- Regulating and damming of rivers affect their natural flow causing poor sediment flow and excessive sedimentation at the bottom of the reservoir, resulting in rockier stream beds and poorer habitats for the rivers’ aquatic life.
- Multi-purpose projects also fragment rivers making it difficult for aquatic fauna to migrate, especially for spawning.
- The reservoirs that are created on the floodplains also submerge the existing vegetation and soil leading to its decomposition over a period of time.
- They also harm the environment and fertility of soil.
- They also lead to large scale displacements and loss of livelihood.
Question 3.
Answer the following questions in about 120 words:
(i) Discuss how rainwater harvesting in semi-arid regions of Rajasthan is carried out.
Answer:
Houses in the semi-arid regions of Rajasthan have traditionally built tanks or tankas JOT stor¬ing drinking water. These tanks are as large as a big room and are a part of the well-developed rooftop rainwater harvesting system. The tanks are usually constructed inside the main house or the courtyard. They are connected to the sloping roofs of the houses through a pipe. The rain falling on the rooftops travels down the pipe and is stored in these tanks.
The first spell of rain is usually not collected as this water cleans the roofs and pipes. The rainwater from the subsequent showers is then collected.The rainwater collected in the tanks is used till the next rainfall making it an extremely reliable source of drinking water when all other sources are dried up, particularly in the summers. The rainwater is considered the purest form of natural water. Many houses have built underground rooms adjoining the tanks to beat the summer heat as they keep the room cool.
(ii) Describe how modem adaptations of traditional rainwater harvesting methods are being carried out to conserve and store water.
Answer:
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 Mysore, Karnataka, villagers have installed, in their household’s rooftop, rainwater harvesting system to meet their water needs. Nearly 200 households have installed this system and the village has earned the rare distinction of being rich in rainwater. Tamil Nadu is the first state in India which has made rooftop rainwater harvesting structure compulsory to all the houses across the state. There are legal provisions to punish the defaulters.
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