Question

Raziya is a village girl. Every morning she fetches water from the nearby river
and uses a cotton cloth to cover the mouth of the pot to pour the water which is used
for drinking. Later she also adds chlorine to this filtered water.
(a) Why does Raziya use cotton cloth to filter the water?
(b) Why does Raziya add Chlorine to the filtered water?

Answer 1

Explanation:

i) She uses cotton cloth so that impurities bigger in size are removed from the water.

ii) She adds chlozrine so that the impurities smaller in size which goes through the cloth are removed too.

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Answer 2

Answer:

a) to filter the large particles.

b) to filter dust in the water