The most abundant gase in the earth's atmosphere by volume is _____?

The most abundant gase in the earth's atmosphere by volume is _____?

حجم کے لحاظ سے زمین کے ماحول میں سب سے زیادہ وافر گیس _____ ہے؟
Explanation

The most abundant gas in the atmosphere is nitrogen, with oxygen second.

Argon, an inert gas, is the third most abundant gas in the atmosphere.