Biology 0610 · 20 Human influences on ecosystems
20.3 Pollution
Describe the effects of sewage, fertilisers, and plastics on ecosystems, and explain the processes of eutrophication and climate change.
- Questions
- 169
- Years
- 2015–2026
- Multiple choice
- 112
- Written answer
- 57
- Average marks
- 4.4
Practise human influences on ecosystems questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 11, 12, 1359
- Paper 2variants 21, 22, 2356
- Paper 3variants 31, 32, 3330
- Paper 4variants 41, 42, 4324
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | 2 | 7 | – | 9 |
| 2023 | 2 | 10 | 5 | 17 |
| 2022 | – | 4 | 5 | 9 |
| 2021 | 3 | 5 | 12 | 20 |
| 2020 | – | 11 | – | 11 |
| 2019 | 2 | 8 | 8 | 18 |
| 2018 | 5 | 8 | 12 | 25 |
| 2017 | 4 | 10 | 6 | 20 |
| 2016 | 4 | 9 | 8 | 21 |
| 2015 | 4 | 9 | 6 | 19 |
