1.

(A) Oxygen is most abundant in earth's atmosphere (R ) Oxygen is the stablest ga present in the air

Answer»

Both (A) and (R ) are TRUE and (R ) is the correct EXPLANATION of (A)
Both (A) and (R ) are true and (R ) is not the correct explanation of (A)
(A) is true but (R ) is FALSE
Both (A) and (R )are false

ANSWER :D


Discussion

No Comment Found