The two gases which, taken together, make up about 99 percent of earth's atmosphere are : (A) Nitrogen…
Nitrogen (\(\approx 78.08\%\)) and Oxygen (\(\approx 20.95\%\)) together constitute about \(99\%\) of the Earth's dry atmosphere -> (A) and (D).
Choose your answer
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
Answer and explanation
Correct answer D
Nitrogen () and Oxygen () together constitute about of the Earth's dry atmosphere -> (A) and (D).
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