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$ Air pollutants are always gaseous. !...

$ Air pollutants are always gaseous.
! Ultraviolet rays do not cause any harm to the human beings.

A

If both As and R are correct and R is correct explanation of As

B

If both As and R are correct but R is not correct explanation of As

C

If As is correct, R is wrong

D

If both As and R are wrong.

Text Solution

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The correct Answer is:
D
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  9. $ Xylem is a simple permanent tissue. ! Xylem is present in Bryophyt...

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