Continuity and Change D.12 Climate Change (id: cc2632d8e)

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.Describe the method0 knmohs,; n r;5jeh2u used by sci6xmi rmca /j-l /h)mvc .fhm-,entists to deduce carbon dioxide concentrations from thousands of years ago.f/a ).,-mmcm/hhvimx 6jrc-l

2.Explain why rising levels of atmospheric carbon dioxide are the main cause of climate change.

3.How have increased carbon dioxide levels affected reef-building corals in marine waters?

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