Table 1 shows the average concentration of methane (CH4\text{CH}_4CH4) in the Earth's atmosphere measured in 2012 and 2022.
| Year | Average global concentration of methane / ppb |
|---|---|
| 2012 | 1802 |
| 2022 | 1912 |
Give one human activity that has caused this increase in the concentration of methane.
Practise Edexcel GCSE Chemistry Earth and atmospheric science with exam-style questions for Foundation and Higher tier. 62 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
