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9.2 Carbon dioxide and methane as greenhouse gases

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Question 24
F

Many scientists believe that human activities will cause the temperature of the Earth's atmosphere to increase at the surface.

a.

The conclusions of these scientists are based on peer-reviewed evidence.

Give one reason why peer review is important.

[1]
b.

It is difficult to model a system as complex as global climate change.

Give one reason why.

[1]
c.

A magazine article states that global climate change will not affect the United Kingdom. The article uses two of the twelve sets of data that are available.

Give two reasons why the conclusion of this article may not be valid.

[2]
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

73 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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