Question

The gases harmful or historical monuments are:(a) NO2 and SP2(b) O2 and N2(c) C and H2(d) None of these

Answer 1

♻Here Is Your Answer, Dear!!!♻
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▶ANSWER:- A

The gases harmful or historical monuments are "NO2 and SP2".

Answer 2

heya..

here is you answer..

The gases harmful or historical monuments are:

(a) NO2 and SP2✔✔

(b) O2 and N2

(c) C and H2

(d) None of these

It may help you..☺☺