Biology 5090 · O Level · Effects of humans on ecosystems

Effects of humans on ecosystems — practice question

The graph illustrates how the percentage of carbon dioxide in the atmosphere has altered since 1700.
(a)[5]

Explain how human activity is likely to have contributed to the alteration in the percentage of carbon dioxide.

(b)[5]

Describe and evaluate the effects of this alteration in the percentage of carbon dioxide.

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