Combined Science GCSE
Atmospheric composition
What Atmospheric composition means in Combined Science GCSE, as defined for AQA.
Definition of Atmospheric composition
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Reference: AQA
The proportions of different gases in the atmosphere, with nitrogen about 78% and oxygen about 21%.
Topics that use Atmospheric composition
Related terms
- Oxygen as the second most abundant atmospheric gas
- Proportions of gases by volume
- Proportions of nitrogen and oxygen
- Trace gases and variability
- Using fractions and percentages to describe mixtures
- Variation and approximate nature of atmospheric data
- Composition of the atmosphere
- Composition of the atmosphere as a mixture
Using Atmospheric composition in the exam
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