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9.2 Carbon dioxide and methane as greenhouse gases

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Question 12
F

Scientists publish their results on climate change so that other scientists can check them. What is this process called, and why is it important?

[1]
A

Sampling, because it checks that enough measurements were taken

B

Sampling, because it makes sure measurements are repeated often

C

Peer review, because it checks the quality of the evidence

D

Peer review, because it makes all scientists reach one conclusion

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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