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9.2 Earth and atmospheric science

9.2 Earth and atmospheric science

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Question 1
F

What process produced most gases in the Earth's early atmosphere?

[1]
A

Volcanic activity

B

Evaporation of water from the oceans

C

Electrolysis of seawater

D

Photosynthesis by early plants

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.

Question bank