Question

3. Match the two columns
Column A
1. Chlorofluorocarbons
2. Reverse osmosis
3. Ultraviolet radiation
4. Eutrophication
5. Sedimentation
6. Potable water
Column B
(1) Disinfection of water
(11) Settling of suspended matter at the bottom
of the tank
(III) Filtration through membrane under pressure
(iv) Depletion of ozone layer
(v) Water safe for drinking
(vi) Contamination of water with detergents and
fertilizers​

Answer 1

Answer:

1. - iv

2.- iii

3.- i

4.- vi

5.-ii

6.-v