The concentration of methane (CH4CH_4CH4) in the atmosphere can be measured in parts per billion (ppb).
Table 1 shows the global average measurements of methane in July 2011 and July 2021.
Table 1
| Month and Year | Concentration of methane in ppb |
|---|---|
| July 2011 | 1801.34 |
| July 2021 | 1895.78 |
Calculate the increase in the concentration, in ppb, of methane from July 2011 to July 2021.
Give your answer to the nearest whole number.
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.
