Assignment on Water a Precious Resources, Chapter-16, class-7, NCERT

 Answer all the questions:

1. Define water table. (1)

2. What is an aquifer? (1)

3. Define infiltration. (1)

4. What is bawri? (1)

5. Why we celebrate World Water Day every year?(1)

6. Define ground water. (1)

7. How drip irrigation helps to reduce water wastage? (2)

8. What would be the effect of water scarcity on plants? (2)

9. What role we can play to minimise the wastage of water? (2)

10. Discuss some factors depleting water table. (4)

11. How civic authority can manage water wastage? (2)

12. How water is distributed in different forms on the surface of the earth? (2)