Question

CHOOSE THE CORRECT ANSWER:-

2. A substance added to water in the sedimentation tank .
a. gravel
b. alum and lime
c. bleaching power
d. ozone

please answer this question friends.
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Answer 1

Answer:

b.alum and lime

to keep it purified

Answer 2

$\huge\fbox\red{☞Answer}$

☆A substance added to the water in the sedimentation tank.

☞B. Alum and Lime

☆Explore More:

Alum,a solid which is soluble in water, is used to load suspended clay particles in water. The dissolved particles of alum load the fine particles of clay in water. They become heavier and settle down quickly. The clear water on top is then decanted or filtered.

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