Chemistry crossword 0.0 / 5 ? ChemistryThe earth and its atmosphereGCSENone Created by: Neha RajuCreated on: 16-03-13 13:43 gas that's essential for lfe oxygen 1 of 5 main gas in the air nitrogen 2 of 5 what type of compound is water? covalent 3 of 5 what gas is in the Earth's atmosphere and contributes to global warming? carbon dioxide 4 of 5 what type of gas is argon, in the periodic table? noble gas 5 of 5
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