Biology 5090 · O Level · Effects of humans on ecosystems
Effects of humans on ecosystems — practice question
The diagram indicates where a number of features are positioned beside a river that begins in the mountains and flows to the ocean.
(a)[6]
Describe and explain the possible harmful effects of human activity on the environment at each of the following locations: the agricultural land; the power station.
(b)[4]
Suggest ways in which people in the town could change their activities so as to reduce the harmful impact that they have on the environment.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “fertilisers / pesticides / insecticides” …