NCERT Class 10 Geography Chapter 3 Water Resources Notes & Questions answer

Are you a student of class 10th and you are looking for important question answers in NCERT Class 10 Geography Chapter 3 Water Resources Notes?

this chapter is very important for the exam. Many questions from this chapter have come in the exam. Because of this, it is very important to know the question and answers to this chapter.

So students, after reading this article, you will get a lot of marks from this chapter in the exam, because the questions related to all the exams have been described in it, so definitely read it completely.

NCERT Class 10 Geography Chapter 3 Water Resources Notes

Class	10th
Chapter	03
Chapter Name	Water Resources
Board	cbse
Book	NCERT
Subject	History
Medium	English
Study Materials	Question Answer

very short answers type questions

1. What is watershed development?

Answer – Water is the basin of the Samar tributary. There may be a small river in it. It may or may not happen, but whenever it rains, water flows through there and eventually gets mixed in some river or the other. Thus watershed is a geomorphic unit and it is conveniently used for integrated development in small natural unit areas.

2 What is rainwater harvesting?

Ans- Rainwater harvesting is a technique to increase the capacity of underground water. In this, special structures such as wells, dams, etc. are constructed to trap and collect rainwater. It not only stores water, but also creates favorable conditions for water to go underground.

3 Why is irrigation necessary in India?

The monsoon climate is found in North India. Rainfall is not fixed in a monsoon climate. Therefore, where there is less rainfall, irrigation is required.

4 What is River Valley Project?

Answer – Such projects are implemented by making dams for flood control, hydroelectricity construction, water supply, Singat rivers, river ghat management, etc., with the objectives called projects.

5 What is the benefit of a multipurpose river valley project?

Answer- The following are the benefits of the multipurpose river valley project-

(a) control of floods,
(b) power generation,
(c) inland water transport,
(d) Prevention of soil erosion.

6. Name any three river valley projects ।

Answer – River Valley Projects –

(a) Damodar Valley Project (on Damodar River).
(b) Bhakra-Nangal Valley Project (on Sutlej River),
(c) Chambal Valley Project (on Chambal River).

7 What is the river basin?

Answer – A river basin is an area whose water is carried away by a river and its tributaries. A watershed is a basin of a tributary, it may or may not have a small river, but whenever it rains, water flows through it and eventually joins one or the other river.

8. Write the names of the states through which the river Narmada flows.

Answer – The Narmada River flows in the east direction passing through two states of India, Madhya Pradesh and Gujarat, and finally falls into the Arabian Sea.

9. Write the names of two states through which Mahanadi flows.

Answer – Mahanadi flows through Chhattisgarh and Orissa. It originates in Chhattisgarh and then goes eastwards through Orissa and falls into the Bay of Bengal.

10 What are the main sources of surface water?

Answer – Water on the surface is found in puddles, ponds, rivers, and reservoirs.

11 What are the three main sources of irrigation in India?

There are three main means of irrigation in North India- (a) wells, (b) tube wells, and (c) ponds.

12 What are the original sources of water on Earth? In what forms is water stored on land?

Answer- The basic source of fresh water on the earth is rain and snow. A part of it flows as surface water and is stored and a part seeps into the ground. Some part of it gets mixed in the air by evaporation.

13 Why there is a need for water conservation structures to store and conserve water in many parts of our country? Give two reasons. Or, Why is it necessary to conserve water resources? Give two reasons.

Answer- Water conservation structures are needed to collect and conserve water in many parts of our country due to the following reasons-
(a) Water conservation structures man-made lakes and dams due to less rainfall are made as necessary. For example in Gujarat and Rajasthan.
(b) Water conservation is essential for irrigation purposes as the monsoon is erratic and weak.

Forest And Wildlife Resources Class 10 Notes

Class 10th VVI Notes

class 10th Notes	MCQ
History	Political Science
English	Hindi
HOME	CLASS 10

Short answer Type questions

1. Explain how water is a renewable resource.

Answer- Renewable resources are those which can be used again and again. According to this definition, water is also a renewable resource. Water evaporates from oceans, rivers, lakes, fields, etc. Eventually, when these vapors cool down, they again come to the earth in the form of rain. This water cycle makes water a renewable resource. Which can be used repeatedly.

2. What is water scarcity and what are its main causes?

Although human water is an inexhaustible gift of nature, due to unequal distribution, excessive demand, and misuse, the water level is continuously going down and water is becoming scarce. This problem of lack of water is called water scarcity.

Reasons for water scarcity-

(a) Only 2.5% of the water available in the world is fresh water. Some 70% of this sweet water is found in the form of snow on the mountains. In this way, the quantity of sweet and clean water remains very less. (b) Due to the ever-increasing population, the per capita availability of water is continuously decreasing.

(d) Due to ever-increasing industries there is also a shortage of water. Many industries (such as the paper industry, steel industry, etc.) consume a lot of water.

(e) Due to the continuous growth of cities, the need for water also increases a lot, due to which there is a shortage of water.

3. How is rainwater harvesting done in semi-arid areas of Rajasthan? Explain.

Answer – A large part of Rajasthan is a desert, so there is always a lack of water here. creating a problem. Keeping this fact in front, various rulers there tried to solve this problem by building various types of reservoirs.

Even today, we get to see many water bodies in different parts of Rajasthan. Some man-made lakes and ponds in Rajasthan are as follows-

Bhopal Tal, Udaipur Pichhola and Uday Sagar, Gadsisar in Jaisalmer, Anasagar in Ajmer, and Jaigarh Fort near Jaipur, built by Parmar King Bhoj in the 11th century, present excellent examples of water storage and engineering. These efforts have stood the test of time and are an important aspect of our heritage. To meet the shortage of water, many step wells were constructed in Rajasthan.

4. What do you understand by water resources? Write its benefits.

Answer- That part of the water received on the earth which is used by humans in some form or the other is called water resource.

Benefits from this-

(a) for irrigation in agriculture, (b) for drinking and domestic purposes,

5. Mention the various methods of water conservation.

Answer- Water conservation measures- Water should be used very carefully and its importance should be understood.

(a) Water can be used again and again by modifying it.

(b) The water that goes unnecessarily into the sea during the rainy season can be used for irrigation by digging canals.

(c) This water can be collected by making big deep ponds. And in the summer months, the water can be used for irrigation or other work.

(d) By conserving water we can produce more products and by generating more electricity we can replace non-renewable sources like coal and oil. Water is a great gift of nature, so it should be used wisely.

6. Describe the importance of water in life.

Answer- Following are the importance of water in life-

(a) Water is essential for the existence and development of humans, plants, and animals.

(b) Water as a sea route is an important means of transport.

(d) Water is used by humans for drinking, cooking, washing clothes, and other domestic purposes.

(e) Hydroelectricity is made from water.

7 What is the purpose of rainwater harvesting?

Answer- Objectives of rainwater harvesting-

(a) to meet the growing demand for water,
(b) reducing the amount of water flowing on the surface,
(c) to prevent water-logging of roads,
(d) the ability to collect ground water and increase the water level,
(e) reducing groundwater pollution,
(f) enhancing the quality of groundwater,
(g) To meet the domestic requirement of water in the summer season and long dry periods.

8. Write 8 advantages of rainwater harvesting.

Answer- Benefits of rainwater harvesting-

(a) By cleaning it, the drinking water requirement of the local people can be met.
(b) This water can also be used to irrigate fields in times of scanty or no rainfall.
(c) One advantage of this water is also that the level of water below the surface remains high so that water can be taken out through wells and tap wells and used.
(d) As a result of water harvesting in this way, there is not so much burden on the drainage system of dirty water in the cities. When there are so many benefits of rainwater harvesting then people especially rural people should take full advantage of it. According to an estimate, an ordinary village of ours can store 3.75 billion liters of water on some 340 hectares of land and avoid drought conditions and famine conditions.

9. What is a dam? How are they helpful in the conservation and management of water?

Answer – A dam is a reservoir in general. It is constructed to stop the flowing water, to change the direction of the water, etc.
The dam has a slope through which water flows. Dams are constructed across rivers and rainwater is collected in the low-lying plains. This collected water is transported to Khela through canals. Thus dams play an important role in water conservation and management.
In ancient India, dams existed at places like Kalinga (Orissa), Nagarjuna Konda (Andhra Pradesh), Vennur (Karnataka), etc. In the modern period, the Heeraku project on the Mahanadi, the Bhakra project on the Sutlej River, the Kosi project on the Kosi River, etc. are major dams. Multipurpose River Valley

10. What is a project? Mention any two objectives served by the river valley project.

Answer- The meaning of a multi-purpose river valley project is to solve many problems related to the river valleys in an integrated form.

Objectives of the river valley project-

(a) preventing floods,
(b) stop soil erosion,
(c) providing water for irrigation,
(d) for drinking purposes.

11 Describe the methods adopted for water harvesting in ancient India.

Answer – In ancient India, in the semi-arid and arid regions of Rajasthan, especially in Bikaner, Phalodi, and Barmer, almost every house had an underground tank or ‘tanka’ to store drinking water. Its size can be equal to a large room.

A house in Phalodi has a tanka 6.1 m deep, 4.27 m long, and 2.44 m wide. Tanka is here an integral part of a well-developed rooftop rainwater harvesting system which is built into the main house or courtyard. These are connected by pipes to the sloping roofs of the houses. Rainwater from the roof passes through these taps to an underground tank where it is collected.

The first rainwater is used to clean the roof and taps. It is not stored. After this, rainwater is collected. Because this water is pure and clean.

Long answer Type questions

1 What is meant by a multipurpose project? Why have these projects been called the temples of modern India? Explain.

Answer – For the development of agriculture and industries in India, the central and state governments made several schemes for flood control, expansion of irrigation facilities, and development of hydroelectricity. After assessing the capacity of flowing water, with its cooperation, detailed plans were prepared to fulfill several objectives at the same time. The river valley projects which serve multiple purposes at the same time are called multipurpose projects.

India’s first Prime Minister Pandit Jawaharlal Nehru has called multipurpose projects ‘temples and pilgrimage sites of modern India’, because they serve many purposes simultaneously, the main ones are as follows-

(a) Flood control and soil conservation- Before the river valley projects, floods were a common phenomenon during the rainy season, which caused huge losses of people and money. Precious soil used to flow away. Agricultural development depends on the soil. To solve this burning problem, by making dams on the rivers, and by controlling the intensity of the flow, the river valleys have achieved success in conserving the soil.

(b) Expansion of irrigation facilities Big lakes have been constructed behind the dams on the rivers. Rain water gets collected in these. When water is needed in the dry season, this water is put to good use for irrigation by canals. The expansion of irrigation facilities has led to the expansion of agriculture and agricultural productivity has increased manifold. Two to three crops have started being taken from one field in the rainy season.

(c) Construction of hydroelectricity Due to the construction of dams, the flowing water is dropped from a height, with the help of which hydroelectricity is generated. It is a clean, neat, and pollution-free form of energy.

(d) Industrial development- The development of industries depends on regular and cheap power. With these schemes of industries, water is available in sufficient quantity along with the availability of power.

(b) Water transport facility- Inland water transport facility is available in main rivers and canals under multipurpose river valley projects. It is the cheapest mode of heavy transport.

(d) Freedom from drought and famine – Irregularity and uncertainty of rainfall remain the same. Drought due to less rainfall and submergence of crops due to excess rainfall are common things. In both cases, there is famine. Famine can be saved by sending water to drought-prone areas and making arrangements for the drainage of excess water from flood-prone areas.

2. Mention any five advantages of multipurpose projects.

Ans: The following are the benefits of multipurpose projects-

(a) Irrigation facilities have increased through multipurpose projects and the land which was previously lying barren has now been irrigated by providing water through canals and millions of quintals of food grains have started being produced.

(b) These large dams have made a special contribution to checking the velocity of floods and saving people from destruction.

(c) These dams have saved people from hunger and famine. Earlier, countless people used to die of hunger and famine, now they have been given life because of these big dams.

(d) These dams have made a very important contribution to running our factories and generating electricity for our convenience. Without electricity neither the essential things are available to us nor our life would be so prosperous and happy.

(e) Due to these dams, fish farming has also been facilitated.

(d) There was a great increase in commerce and trade due to higher production and production of more goods from the factories. That’s why Pandit Nehru called this big temple as the temple of modern India.

3. Mention any five disadvantages of multipurpose projects.

Answer- The losses caused by multipurpose projects are as follows-

(a) Multipurpose projects engulf a lot of surrounding areas with their reservoirs and various construction works and make them useless forever.

(b) People who are living in such areas have to be homeless. No person wants to leave his place of birth and residence.

(d) There is a danger of floods when the reservoirs of these dams are filled to the brim with water, especially during the rainy season.

(e) Whenever the water of these big dams starts seeping from some side, it creates a lot of trouble for the residents of the nearby areas.

(f) Some people even say that if this dam breaks due to an earthquake etc., foreign invasion, or any terrorist mischief, it will be the apocalypse.

4. How is water conservation and storage being done by adopting traditional methods of rainwater harvesting in modern times?

Wells, lakes, ponds, step-wells, etc. are the methods of post-conventional rainwater harvesting. are prominent. Water conservation and storage were done by adopting these methods in the villages.

going. The traditional method of rooftop rain harvesting is very successful in collecting drinking water in western Rajasthan.

Today when the water level in the cities is decreasing rapidly. Rooftop rainwater harvesting has become imperative. The rainwater goes from the roofs to the sea through drains and rivers. If the rainwater falling on the roofs is stored in our land, then the problem of falling water levels can be solved.

5. Rainwater can be collected from the roofs in the following ways-

(a) PVC pipes are used to collect rainwater.

(b) The collected water is carried by underground pipes to tanks, cisterns, or pits. When excess water is accumulated, it is stored in wells. The rooftop rainwater harvesting method is working successfully in Shillong and Tamil Nadu.

6. Why is conservation and management of water resources necessary? What needs to be done about this?

Answer- Water is the basis of life. The availability of water on Earth is limited. Therefore, the conservation and management of water are necessary. Conservation and management of water are also necessary because the limited amount of water available is getting polluted due to various reasons. Presently water crisis has become a serious problem. Which can be resolved through proper conservation and management of water sources. For this, the following steps should be taken-

(a) Construction of more reservoirs to store more water.
(b) Increase in underground water.
(c) Creating a river water grid.
(d) Collecting rainwater.
(e) Adoption of water recovery technique.

Class 10 Geography Solutions | Class 10 Geography

Chapter 1 Resource and Development

Chapter 2 Forest and Wildlife Resources (Extra Questions for Forest and Wildlife Resources)

Chapter 3 Water Resources (Extra Questions for Water Resources)

Chapter 4 Agriculture (Extra Questions for Agriculture)

Chapter 5 Minerals and Energy Resources (Extra Questions for Minerals and Energy Resources)

Chapter 6 Manufacturing Industries (Extra Questions for Manufacturing Industries)

Chapter 7 Lifelines of the National Economy

FAQs

Q. What is meant by perennial rivers?

Answer- Sadanira is those rivers that have a sufficient amount of water throughout the year. These rivers originate from the snowy regions of the Himalayas, so even in dry seasons, snow melts and maintains the amount of water in these rivers.

Q. What are seasonal rivers? Give examples of these.

Answer – In seasonal rivers, a sufficient amount of water remains only in the rainy season. In the rest of the season, either these rivers dry up or the quantity of water decreases. Rivers like Godavari, Krishna, Kaveri, etc. are seasonal.

NCERT Class 10 Geography Chapter 3 Water Resources Notes & Questions answer

NCERT Class 10 Geography Chapter 3 Water Resources Notes & Questions answer NCERT Class 10 Geography Chapter 3 Water Resources Notes & Questions answer

NCERT Class 10 Geography Chapter 3 Water Resources Notes & Questions answer

NCERT Class 10 Geography Chapter 3 Water Resources Notes & Questions answer

NCERT Class 10 Geography Chapter 3 Water Resources Notes

very short answers type questions

Short answer Type questions

Long answer Type questions

Class 10 Geography Solutions | Class 10 Geography

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