本题目来源于试卷: Continuity and Change D.12 Climate Change，类别为 IB生物学
[问答题]
1.Compare the concentration and potency of carboz ixn y,nle-*hxa6t 89n dioxide and m6qu6yo0z0a b*5gkddmethane as greenhokd bo6dq* m0y6az0g5u use gases in the atmosphere.
2.Explain the reasoning of climate scientists for identifying human activity as the main cause of climate change.
3.Discuss the consequences of global warming with reference to the climate, marine organisms, and changes to coastal regions and Arctic ecosystems.
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