Although the average concentration of carbon dioxide in the Earth's atmosphere is rising overall, the actual concentration fluctuates throughout the year.
Explain two factors that cause the concentration of carbon dioxide in the atmosphere to vary over the course of a year.
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.
