Interaction & Interdependence C.9 Transfers of Energy & Matter (id: e19a9ae5d)

本题目来源于试卷: Interaction & Interdependence C.9 Transfers of Energy & Matter，类别为 IB生物学

[问答题]
The following graphs show the concentration of atmos+rnpzr rj2kc5*w( mbw4 w0oa8 )q(f mcpheric carbon dioxide over ke+ :5 lh5nglgtime at Mauna Loa Obse5lngk: l h+g5ervatory in Hawaii, United 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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