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9.2 Earth and atmospheric science

9.2 Earth and atmospheric science

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Question 51

Table 1 shows the average concentration of methane (CH4\text{CH}_4CH4​) in the Earth's atmosphere measured in 2012 and 2022.

YearAverage global concentration of methane / ppb
20121802
20221912

Give one human activity that has caused this increase in the concentration of methane.

[1]
Markscheme

9.2 Earth and atmospheric science Questions

  1. GCSE
  2. /Chemistry
  3. /9.2 Earth and atmospheric science

97 exam-style questions on Edexcel GCSE Chemistry 9.2 Earth and atmospheric science, covering 9.2.1 The Earth's early atmosphere, 9.2.2 How the atmosphere evolved, 9.2.3 Chemical test for oxygen, and 9.2.4 The greenhouse effect and climate change. Each one has a worked solution and a mark scheme showing where the marks go.

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