PPL(A) EN: What is the gas composition of "air"?
Domanda 4, Meteorology - PPL(A) English - Private Pilot License (Aircraft)
| Oxygen 21 % Water vapour 78 % Noble gases / carbon dioxide 1 % |
| Oxygen 78 % Water vapour 21 % Nitrogen 1 % |
| Nitrogen 21 % Oxygen 78 % Noble gases / carbon dioxide 1 % |
| Oxygen 21 % Nitrogen 78 % Noble gases / carbon dioxide 1 % |
