Biology · May / June 2020 · Paper 22 · Question 2
5090
As printed in the paper
The question as text
The pollution of air and water may result from human activity. This pollution can lead to many harmful effects on ecosystems. A knowledge of these harmful effects has led to a reduction in human activity that leads to this pollution.
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Show the answer and mark scheme
2(a)(i)[4]
2(a)(ii)[1]
2(a)(iii)[3]
2(b)(i)[1]
2(b)(ii)[3]
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