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Question 19

From Biology SL Paper 1 (November 2024, TZ2)

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  1. The graph shows monthly mean atmospheric carbon dioxide concentrations measured at Mauna Loa Observatory, Hawaii in 2020 and 2021.
Line graph showing monthly mean atmospheric carbon dioxide concentrations in parts per million (ppm) over the years 2020 and 2021, measured at Mauna Loa Observatory, Hawaii.
Line graph showing monthly mean atmospheric carbon dioxide concentrations in parts per million (ppm) over the years 2020 and 2021, measured at Mauna Loa Observatory, Hawaii.

Which processes contribute to changes in monthly mean atmospheric carbon dioxide concentrations?

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