Answers

2016-04-07T23:03:57+05:30
1. Carbon Dioxide (CO_{2} )
2. Argon (Ar)
3. Hydrogen (H_{2} )
4. Helium (He)
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Please mark it brainiest answer......................................
2016-04-07T23:05:28+05:30
Other than oxygen and Nitrogen. Its carbon dioxide, argon, ozone and methane.
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