Question

Fill in the blanks
Large sheets of ice are called....
The process of removal of impurities of water.....
Rivers, lakes and ponds are the sources of....
Harmful and unwanted substances in water....
Toxic gases in the air react with rain water to make....
NAME:
DA​

Answer 1

1 ice sheet

2 purification

3 rain

4 water pollutents

5 acid rain