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In a filtration plant water is filtered ...

In a filtration plant water is filtered using layers of

A

sand and clay.

B

clay and fine gravel.

C

sand and fine gravel.

D

sand, fine gravel and medium gravel.

Text Solution

Verified by Experts

The correct Answer is:
D
The sand, fine gravel and the medium gravels are used to filter as they form a layer so that efficient filtration takes place.
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