Page 46 - SST Class 04

5. A ____________ is also called a multipurpose river project.
(a) river (b) dam (c) pond
6. When we use water, it becomes ____________ .

(a) clean (b) dirty (c) drinkable
B. Write TRUE or FALSE :
1. The water in rivers and ponds is freshwater. ________
2. Water table shows the level of groundwater. ________
3. A Persian wheel is a series of wheels. ________
4. Wells cannot be dug at a rocky place. ________

5. A dam is built across a river. ________
6. There is a shortage of drinking water at many places. ________
C. Answer the questions briefly :
1. What are important small water bodies?
2. For what purposes is water needed?

3. How has the water table fallen?
4. How is water stored in the Deccan Plateau?
5. What is a multipurpose river project?
6. How is hydroelectricity produced?
7. How important is it to conserve water?

Activity

v Find out and write any two important sources of water in your town from where water is
supplied to your house and school :
______________________ ______________________

Water and You

v Make a poster here to tell people how important conservation of water is :

46 Contemporary Social Science-4