Question

2.
and
constitute agricultural wastes.
3.
The presence of domestic sewage, in water, promotes the growth of
and
which use up a lot of oxygen, present in water.
4.
Water, that is safe for drinking, is called
water.
5. One of the purposes of purification of water is to remove the
impurities, present in it.​

Answer 1

Answer:

A 1 chlorination

2 fertiliser and pesticides

3 algae and bacteria

4 potable

5 suspended

Answer 2

Answer:

1.Chlorination

2.Fertiliser,pesticides

3 algae, bacteria

4.potable

5.suspended