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9.2 Carbon dioxide and methane as greenhouse gases

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Question 20
H

Methane makes up a far smaller proportion of the atmosphere than carbon dioxide does. However, one molecule of methane absorbs much more long wavelength radiation than one molecule of carbon dioxide. What can be concluded about the contribution of methane to the greenhouse effect?

[1]
A

Methane contributes less than its small proportion would suggest

B

Methane contributes about the same amount as carbon dioxide does

C

Methane can contribute significantly despite its small proportion

D

Methane contributes more to the greenhouse effect than carbon dioxide

Markscheme

9.2 Carbon dioxide and methane as greenhouse gases Questions

  1. GCSE
  2. /Chemistry
  3. /9.2 Carbon dioxide and methane as greenhouse gases

40 exam-style questions on AQA GCSE Chemistry 9.2 Carbon dioxide and methane as greenhouse gases, covering 9.2.1 Greenhouse gases, 9.2.2 Human activities which contribute to an increase in greenhouse gases in the, 9.2.3 Global climate change, and 9.2.4 The carbon footprint and its reduction. Each one has a worked solution and a mark scheme showing where the marks go.

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