Question

Our atmosphere has __% Nitrogen, __ % Oxygen, and __% other gases like carbon dioxide, argon, and water vapour.

• A. 54, 40, 6
• B. 78, 21, 1
• C. 80, 12, 8
• D. 21, 78, 1

Answer 1

The correct option is B 78, 21, 1

The composition of the Earth's atmosphere is perfect for life to exist. It has 78% Nitrogen, 21% Oxygen, and 1% other gases like carbon dioxide, argon, and water vapour. The atmosphere has greenhouse gases like methane, carbon dioxide, and water vapour that trap the Sun’s heat and keep the Earth warm.