Combined Science GCSE
Proportions of nitrogen and oxygen
What Proportions of nitrogen and oxygen means in Combined Science GCSE, as defined for AQA.
Definition of Proportions of nitrogen and oxygen
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Reference: AQA
Nitrogen makes up about four-fifths of the atmosphere and oxygen about one-fifth, quoted as approximate rather than fixed.
Topics that use Proportions of nitrogen and oxygen
Related terms
- Oxygen as the second most abundant atmospheric gas
- Proportions of gases by volume
- Trace gases and variability
- Using fractions and percentages to describe mixtures
- Variation and approximate nature of atmospheric data
- Atmospheric composition
- Composition of the atmosphere
- Composition of the atmosphere as a mixture
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