Continuity and Change D.12 Climate Change (id: d7ff7ef67)

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]
The following graphs show the concentro-p r) 7dinf8c0:qgtv ation of atmospheric carbon dioxbx ,z2s yh;l*rp35sv s3ko0bf ide over time at Mauna Loa Observatory in Hawaii, Unit ;,kfslss23x v3b 0*byo5pzhred States.


1.Describe the overall trend in atmospheric carbon dioxide levels over time.

2.State one factor that has significantly contributed to increases in atmospheric carbon dioxide concentration as seen in the graphs.

3.Explain why the concentration of atmospheric carbon dioxide fluctuates annually.

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