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NCERT Solutions For Class 10 Geography Social Science Chapter 3 Water Resources - Free PDF

Later it is used. Building dams on a river and achieving many purposes is called Multi-purpose projects. Some of these are as follows: i Irrigation Ncert Solutions For Class 10th Geography Chapter 1 University ii Electricity generation iii Water supply for domestic and industrial uses iv Inland navigation and tourism v Flood control vi Fish breeding.

Sometime due to the failure of Monsoon the scarcity of water Increases. River Basin-Total irrigated area by the main river and its tributaries. Underground Water-The water which is collected in the layers and rock pores below the soil. Rain water harvesting-Collecting the ncert solutions for class 10th geography chapter 3 note water in dug wells and reuse of it.

Waterfall-In the middle of the river valley fall of a stream from a height. Dam-A dam is a barrier across flowing water that obstructs, directs or retards ncert solutions for class 10th geography chapter 3 note flow, often creating a reservoir, lake or impoundment.

Multinational companies MNCS -Those companies whose industrial organisations work more than in a single nation and they invest capital in many countries to earn maximum profits. Multi-purpose Projects-Many uses of the impounded water are integrated by making a dam. Bamboo Drip Irrigation System-Tapping stream and spring water for irrigation by using ncert solutions for class 10th geography chapter 3 note pipes.

How much water is there in the world out of total volume for the use of humans? Name the state and the river on which the Tehri Dam Project situated? What was the main purpose of starting multipurpose projects after the independence of India?

By which name the roof top water harvesting is called in Rajasthan? On Bhagirathi river in Uttrakhand. Rain fed storage structures to collect the water in arid and semi-arid regions. However, the map items of this chapter as given in the Map List will be evaluated in Board Examination. Class 10 Geography Chapter 3 Question Answers. How the Industrialisation and urbanization are responsible for the water scarcity?

What is Rain Water Harvesting? Write any two methods of Rain Water Harvesting popular in different regions of India? How does an abandoned dug well can be re-filled by the rain water? Why does the water need to be conserve and managed despite being a renewable resource?

What is multipurpose river valley project? State different purposes of these projects? Why the scarcity of water is increasing in our country day by day? Enlist the reasons behind it?

Important Terms related to 10th Geography Chapter 3 1. One Mark Questions with Answers 1. Answer of 1 Mark Questions 1. All water that is used primarily ends up in the sea. From there, it enters the hydrological cycle in the form of water vapour. Freshwater is renewed by this cycle when precipitation occurs. Hence, ncert solutions for class 10th geography chapter 3 note is a renewable resource.

What is water scarcity and what are its main causes? Water scarcity or water Ncert Solutions For Class 10th Geography Chapter 2 Answers stress occurs when Ncert Solutions For Class 10th Geography Chapter 6 Ii water availability is not enough to match the demand for water. It is caused by an increase in population, growing demand for water, and unequal access to it.

Compare the advantages and disadvantages of multi-purpose river projects. Multipurpose river projects help in irrigation, electricity production, flood control, inland navigation and fish breeding. However, the reservoirs destroy local flora and ncert solutions for class 10th geography chapter 3 note. Many native villages are submerged, and people lose their livelihood, with little or no hope of rehabilitation.

Discuss how rainwater harvesting in semi-arid regions of Rajasthan is carried. Houses in the semi � arid regions of Rajasthan have traditionally constructed tanks for storing drinking water. They are big and are a part of the well-developed rooftop rainwater harvesting. The tanks are constructed inside the main house or the courtyard, and are connected to the sloping roofs of the houses through a pipe.

The rain falling on the rooftop travels down and is stored in the tanks. The first spell of rain is not collected as this water cleans the roof and the pipes. The rainwater from the subsequent spells is collected.

This water is used till the next rainy season, and is a reliable source of water even after other sources have dried up. The tanks also help in cooling the houses as rooms built around them have generally low temperatures due to conduction.

Describe how modern adaptations of traditional rainwater harvesting methods are being carried out to conserve and store water. In Gendathur village, Mysore, about households have adopted the rooftop rainwater harvesting method, thereby making the village rich in rainwater.

The state of Tamil Nadu has made it compulsory for all the houses to have rooftop rainwater harvesting structures. Defaulters are severely punished. Agriculture �.

India is an agricultural country because of the following reasons: Two-third of its population is engaged in agricultural activities. Angles of elevations of the top of the two towers and distance between the two poles are given We have to calculate the height of the tower and the distance of the point from the poles. If the line of sight lies upward from the horizontal line, then the angle formed will be termed as an angle of elevation. All water that is used primarily ends up in the sea. Secant- It is the reciprocal of cosine.

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