1.

(A) Exhaust systems of supersonic jet aeroplanes slowly depleting the concen-tration of ozone layer. (R ) NO _((g)) + O _(3 (g)) to NO _(2(g)) + O _(2 (g))

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 :A


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