CBSE Class 10 Science 2020 Outside Delhi Set 1

Question : 9 of 30

Marks: +1, -0

Several factories were pouring their wastes in rivers A and B. Water samples were collected from these two rivers. It was observed that sample collected from river A was acidic while that of river

B

was basic. The factories located near A and B are :

Soaps and detergents factories near A and alcohol distillery near $B$ .
Soaps and detergents factories near B and alcohol distillery near $A$ .
Lead storage battery manufacturing factories near $A$ and soaps and detergents factories near $B$ .
Lead storage battery manufacturing factories near $B$ and soaps and detergents factories near ${\A}$ .

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