What is the gas composition of air?

Question

Question Quiz BPL Hot Air - Balloon Pilot License - Meteorology

QuizVDS · Accepted Answer

Oxygen 21 % Nitrogen 78 % Noble gases / carbon dioxide 1 %

QuizVDS · Answer

Oxygen 78 % Water vapour 21 % Nitrogen 1 %

QuizVDS · Answer

Oxygen 21 % Water vapour 78 % Noble gases / carbon dioxide 1 %

QuizVDS · Answer

Nitrogen 21 % Oxygen 78 % Noble gases / carbon dioxide 1 %

BPL Hot Air: What is the gas composition of "air"? Id: 200