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Chemistry Unit 1
1.4 The Ever-Changing Earth
Present Atmosphere and Changes
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Eddie
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Cards (5)
How much nitrogen is in the atmosphere today?
78%
How much oxygen is in the atmosphere today?
21%
How much carbon dioxide is in the atmosphere today?
0.04%
How much argon is in the atmosphere today?
0.9%
How much water vapour is in the atmosphere today?
Variable