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Which of the following cannot be degrade...

Which of the following cannot be degraded by natural processes ?
(P) DDT , (Q) Plastic materials
(R) Heavy metals , (S) Nuclear wastes

A

P,Q,S

B

Q,S

C

Q,R

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
D
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  • Which of the following metals cannot be extracted by smelting process ?

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