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9.2 Carbon dioxide and methane as greenhouse gases

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Question 1
F

Greenhouse gases are present in the atmosphere in small proportions. What do greenhouse gases do for conditions on Earth?

[1]
A

They prevent harmful radiation reaching the Earth's surface

B

They maintain the proportion of oxygen that living things need

C

They remove the waste gases released by human activities

D

They maintain temperatures that are high enough to support life

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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