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9.1.4 How carbon dioxide decreased
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Where did the carbon dioxide go?

Where did the carbon dioxide go?

Flowchart showing carbon dioxide moving from the early atmosphere into plant and algal biomass, ocean carbonates and limestone, and buried fossil fuels

9.1.4 How carbon dioxide decreased Lesson

  1. GCSE
  2. /Chemistry
  3. /9.1.4 How carbon dioxide decreased

Step-by-step lessons covering AQA GCSE Chemistry 9.1.4 How carbon dioxide decreased for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.