Chemistry 5070 · 10 Chemistry of the environment
10.3 Air quality and climate
State air composition, identify sources and effects of pollutants, explain greenhouse gases and global warming, and describe strategies like catalytic converters and photosynthesis.
- Questions
- 122
- Years
- 2004–2026
- Multiple choice
- 73
- Written answer
- 49
- Average marks
- 4
Practise chemistry of the environment questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 01, 11, 1270
- Paper 2variants 02, 21, 2244
- Paper 4variants 04, 41, 428
Questions by year
| Year | May/June | Oct/Nov | Total |
|---|---|---|---|
| 2026 | 2 | – | 2 |
| 2023 | 5 | 5 | 10 |
| 2022 | 4 | 6 | 10 |
| 2021 | 6 | 5 | 11 |
| 2020 | 4 | 4 | 8 |
| 2019 | 4 | 6 | 10 |
| 2018 | 3 | 6 | 9 |
| 2017 | 4 | 4 | 8 |
| 2016 | 1 | 5 | 6 |
| 2015 | 4 | 2 | 6 |
| 2014 | 1 | – | 1 |
| 2011 | – | 2 | 2 |
| 2009 | 4 | 4 | 8 |
| 2008 | 1 | 4 | 5 |
| 2007 | 2 | 5 | 7 |
| 2006 | 5 | 4 | 9 |
| 2005 | 4 | 4 | 8 |
| 2004 | – | 2 | 2 |
