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Interpreting and interacting with earth systems

Interpreting and interacting with earth systems

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Question 14

Which group of gases is thought to have made up the majority of Earth's early atmosphere, before the development of photosynthetic life?

A

Oxygen, nitrogen, and carbon dioxide

B

Carbon dioxide, water vapour, and nitrogen

C

Methane, oxygen, and helium

D

Chlorine, argon, and oxygen

Markscheme

Interpreting and interacting with earth systems Questions

  1. GCSE
  2. /Chemistry
  3. /Interpreting and interacting with earth systems

32 exam-style questions on OCR GCSE Chemistry Interpreting and interacting with earth systems. Each one has a worked solution and a mark scheme showing where the marks go.

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