Question

which gas is coming in the air in the sky

Answer 1

Hey mate... Here's your answer..
There are many gases in air... Some of them are... Carbon dioxide... Oxygen.... Nitrogen.... Carbon monoxide... Etc..
Hope it helps you

Answer 2

Answer - In the Atmosphere, the gases exist in many small-big quantities. According to classification, the gases found in which quantity is given below -
1] Nitrogen (71%)
2] Oxygen (28%)
3] Other gases (1%)
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Note - Other gases include Carbon dioxide, hydrogen, carbon monoxide and many other gases.