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9.2 Earth and atmospheric science

9.2 Earth and atmospheric science

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Question 33

Which of the following is a correct statement about the relative percentages of carbon dioxide and oxygen in the Earth's atmosphere today?

A

A high percentage of carbon dioxide and a high percentage of oxygen

B

A high percentage of carbon dioxide and a low percentage of oxygen

C

A low percentage of carbon dioxide and a high percentage of oxygen

D

A low percentage of carbon dioxide and a low percentage of oxygen

Markscheme

9.2 Earth and atmospheric science Questions

  1. GCSE
  2. /Chemistry
  3. /9.2 Earth and atmospheric science

97 exam-style questions on Edexcel GCSE Chemistry 9.2 Earth and atmospheric science, covering 9.2.1 The Earth's early atmosphere, 9.2.2 How the atmosphere evolved, 9.2.3 Chemical test for oxygen, and 9.2.4 The greenhouse effect and climate change. Each one has a worked solution and a mark scheme showing where the marks go.

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