The concentration of nitrous oxide (N2ON_2ON2O) in the atmosphere can be measured in parts per billion (ppb).
Table 1 shows the global average measurements of nitrous oxide in July 2015 and July 2020.
Table 1
| Month and Year | Concentration of nitrous oxide in ppb |
|---|---|
| July 2015 | 328.23 |
| July 2020 | 333.15 |
Calculate the increase in the concentration, in ppb, of nitrous oxide from July 2015 to July 2020.
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.
