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9.2 Carbon dioxide and methane as greenhouse gases

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Question 6

A power station burns coal to generate electricity. Which statement explains why this increases the amount of carbon dioxide in the atmosphere?

[1]
A

Heat from the burning coal warms the air, and warmer air can hold more carbon dioxide than cold air.

B

Smoke from the burning coal absorbs infrared radiation and changes other gases into carbon dioxide.

C

Carbon locked underground in the coal for millions of years is released into the air as carbon dioxide.

D

Burning the coal uses up oxygen from the air, so carbon dioxide makes up a larger share of the air.

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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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