Chemistry (Combined Science) · GCSE · Edexcel · Edexcel GCSE Combined Science (1SC0) — Chemistry — Higher · Specification point · 8.19 · Fuels and Earth science · Earth and atmospheric science
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| Students should: | Maths skills |
|---|---|
8.19 Describe that the Earth’s early atmosphere was thought to contain: a little or no oxygen b a large amount of carbon dioxide c water vapour d small amounts of other gases and interpret evidence relating to this | 2c 3a 4a |