Water resource class X

 Chapter 3

Water resource

• ---------per cent of the total volume of the world’s water is in oceans. P-21

• Only --------Percent of water is freshwater. . P-21 

• Nearly------ per cent of this freshwater occurs as ice sheets and glaciers in Antarctica, Greenland and the mountainous regions of the world. . P-21

• India receives nearly ------ per cent of the global precipitation and ranks 133 in terms of water availability per annum. P-21

• Distinguish between- surface and groundwater resources? P-21

• What are the three sources of fresh water? P-25

• Define the term- Multi-Purpose River Valley Projects. State any five objectives of multipurpose projects. P-26

• Name any four hydraulic structures of ancient India. P-26

• What are dams and how do they help us in conserving and managing water? P-26

• Based on the structure and the materials used, dams are classified as P-26

• According to the height, dams can be categorised as P-26

• ----------------- proudly proclaimed the dams as the ‘temples of modern India’. P-26

• In recent years, multi-purpose projects and large dams have come under great scrutiny and opposition for various reasons. Discuss. P-27

• Multi-purpose projects and large dams have also been the cause of many new social movements. Discuss P-27

or

• Write a short note on Narmada Bachao Andolan & Tehri Dam Andolan. P-27

• The making of dams has an impact on the social landscape. Discuss. P-27

• What are the problems confronting multipurpose projects? P-29

• What is rainwater harvesting? Explain water harvesting/management in ancient India by giving four examples. P-29-30

Name a remote village in south India that stands, as an example of rainwater harvesting in India. P-31

Write a short note on the following 2

• Watershed development.

• Rain water harvesting.

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