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The atmosphere (pollution (carbon monoxide ( If there's too much it…
The atmosphere
pollution
carbon monoxide
If there's too much it can kill you
sulphur dioxide
Nirto oxide
particulates
the green house effect
water vapour
4.6 billion years ago, early atmosphere
volcanos
extremely hot
carbon dioxide
Nitrogen oxide
methane
ammonia
hydrogen
water vapour
carbon footprint
3 billion years