Overview

air


Show Summary Details

Quick Reference

1 A mixture of gases that makes up the Earth's atmosphere. It comprises about 78% nitrogen, 21% oxygen, less than 1% of carbon dioxide and other gases, and varying amounts of water vapour that humans and other organisms require for breathing.

2 The region above the ground, also known as the sky or atmosphere.

Subjects: Meteorology and Climatology — Environmental Science.


Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.