Question

which is the lightest gas on the Earth?​

Answer 1

Answer:

Nitrogen

The Earth's atmosphere is about 78% Nitrogen which is the main gas. Oxygen makes up most of the rest at 21%. The third most abundant gas is Argon at 0.9%. The remaining atmosphere consists of small quantities of Carbon Dioxide, water vapour and other gasses.

Answer 2

Answer:

Nitrogen is the lightest gas on the earth.