Question
Write down the composition of air by volume.
✓
Answer
Component of air – Percentage by volume
Nitrogen – 78 per cent
Oxygen – 21 per cent
Carbon dioxide – 0.02-0.03 per cent
Inert gases – about 0.9 per cent
Water vapour – variable
Dust particles – variable
Impurities – variable
Nitrogen – 78 per cent
Oxygen – 21 per cent
Carbon dioxide – 0.02-0.03 per cent
Inert gases – about 0.9 per cent
Water vapour – variable
Dust particles – variable
Impurities – variable
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