Relationships of organisms with one another and with the environment · Cambridge O Level 5090
19.4 Effects of humans on ecosystems
19.4 Effects of humans on ecosystems appeared in 6 of the 6 years from 2020–2025, worth 294 marks across 52 questions — about 5.65 marks each.
Based on 84 real Cambridge past papers, 2020–2025.
Questions per year
How many Biology questions tagged to this topic appeared each year.
- 20208
- 20218
- 202210
- 202310
- 202410
- 20256
Appearance history
- Most recent
- 2025
- First in range
- 2020
- Years since last
- 0
- Longest gap
- 0 years
Historical occurrence only — not an exam prediction.
Related topics
Topics that most often share a question with this one.
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