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The questions in this quiz are suitable for GCSE combined science students studying the Earth’s early atmosphere, how oxygen increased, and how carbon dioxide decreased.

If you struggled with the quiz, don't panic - we've got you! You can revise energy stores by clicking the links below.

To brush up on your GCSE combined science developing the atmosphere knowledge, click on the link to your awarding body specific revision:

Click the links below to try our GCSE combined science exam-style and quick-fire quizzes to test your skills and knowledge.