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Earth and atmospheric science

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Question 22

Carbon dioxide is a greenhouse gas found in the Earth's atmosphere.

Various physical and chemical processes can alter the concentration of carbon dioxide in the atmosphere.

Draw one straight line from each change in the amount of carbon dioxide to the process causing the change.

change in the amount of carbon dioxide

  • increase
  • decrease

process causing the change

  • photosynthesis in plants
  • combustion of natural gas
  • cracking of long-chain hydrocarbons
  • deposition of sand on beaches
  • melting of polar ice caps
[2]

Earth and atmospheric science Questions

  1. GCSE
  2. /Chemistry
  3. /Earth and atmospheric science

Practise Edexcel GCSE Chemistry Earth and atmospheric science with exam-style questions for Foundation and Higher tier. 62 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank