Q.

Assertion (A): Plants and animals consume oxygen for respiration and produce carbon dioxide.

Reason (R): Smoke contains a few gases and fine dust particles and is often harmful

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a

A is incorrect and R is correct

b

Both A and R are true and R is the correct explanation of A

c

A is correct and R is incorrect

d

Both A and R are true and R is not correct explanation of A

answer is B.

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Detailed Solution

These both statements are true but there is no relation between them.

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