Nitrogen, oxygen and small quantities of other gases make up clean, dry air. The table does not include the noble gases. Which row gives the composition of clean, dry air?
- Anitrogen 21%, oxygen 78%, small amount of carbon dioxide
- Bnitrogen 21%, oxygen 78%, small amount of carbon monoxide
- Cnitrogen 78%, oxygen 21%, small amount of carbon dioxide
- Dnitrogen 78%, oxygen 21%, small amount of carbon monoxide