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9.2 Carbon dioxide and methane as greenhouse gases

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Question 27
H

Global climate change is usually described as a risk rather than as a certainty. Which statement explains why the word risk is used?

[1]
A

The evidence for climate change has not yet been peer-reviewed

B

The effects will only happen in countries that emit greenhouse gases

C

Scientists disagree about whether greenhouse gases absorb radiation

D

The size and the timing of the effects cannot be predicted exactly

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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