A) Answer these questions briefly:

1) What is a dam?

Ans- Dams are strong walls built across the rivers.

- It is a man-made lake.

2) What is a canal?

Ans- Canal is a channel of water drawn from a river or dam.

- It is man-made river.

3) What are the different uses of water?

Ans- The different uses of water are-

* Drinking * Bathing * Washing * Cleaning * Cooking * Irrigation

4) Name the various means of irrigation.

Ans- The various means of irrigation are-

* Well * Tube well * Rain water * Canal * Dam

5) Who called dams the ‘temples of modern India’?

Ans- Pandit Jawaharlal Nehru called dams the ‘new temples of modern India’.

6) What is the most important use of water?

Ans- Irrigation is the most important use of water.

7) What do you know about Bhakra Nagal Dam?

Ans- * It is a multi-purpose river project.

- It is the largest dam in India.

- It is built on the Satluj River.

- It is in the state of Himachal Pradesh. - It’s height 226 meter.

8) What do you mean by multi-purpose river projects?

Ans- Water of the river is stopped by building walls across the river.

- By doing this, dams are made on the rivers.

- Water is supplied to the villages, towns, cities though different channels.

- This water is used for various purposes like- daily needs, producing electricity, irrigation etc.

Such projects are called as multi-purpose river projects.

Ex- Bhakra Nagal Dam.

9) Name any three multi-purpose river projects in our country.

Ans- The three multi-purpose river projects in our country are- a) Bhakra Nagal Dam b) Hirakud Dam c) Mettur Dam

B) Match the following:

1) Kosi Dam - Kosi

2) Bhakra Dam - Satluj

3) Hirakud Dam - Mahanadi

4) Gandhi Sagar Dam - Chambal

5) Nagarjuna Sagar Dam - Krishna

C) Fill in the blanks with suitable words:

1) Water is the basis of all life.

2) The Kaveri is a river of southern part of India.

3) The Ganga is a river of northern part of India.

4) We should not pollute our water resources.

5) Nehru called dams the ‘new temples of modern India’.