The two gases which taken together, make up about 99 percent of earth's atmosphere are:
(A) Nitrogen (B) Carbon dioxide (C) Ozone (D) Oxygen

Question

The two gases which taken together, make up about 99 percent of earth's atmosphere are:    (A) Nitrogen (B) Carbon dioxide (C) Ozone (D) Oxygen

Examsnet · Accepted Answer

Correct Answer is :  (A) and (D)

Maharashtra State PSC Model Paper 2