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 potencwmz ub6js+7 5s+:bazpop4m3sf/,b oelt k kxr-ek5 z,7icufuv:8 v/;y of carbon dioxide and methane as greenhouse gases in the atmost5- 8uflv c/kx k,;7izuk:evr phere.
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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