Sep 12, 2025 · Air, mixture of gases comprising the Earth’s atmosphere. The mixture contains a group of gases of nearly constant concentrations and a group with concentrations that are …

Air is a mixture of many gases and tiny dust particles. It is the clear gas in which living things live and breathe. It has an indefinite shape and volume. It has mass and weight, because it is …

Oct 31, 2012 · The meaning of AIR is the mixture of invisible odorless tasteless gases (such as nitrogen and oxygen) that surrounds the earth; also : the equivalent mix of gases on another …

Oct 1, 2024 · Air is the invisible mixture of gases that surrounds Earth. Air contains important substances, such as oxygen and nitrogen, that most species need to survive.

AIR definition: 1. the mixture of gases that surrounds the earth and that we breathe: 2. the space above the…. Learn more.

1. Of or relating to the air or the movement of air: an air tube. 2. Existing or living in the air; aerial. 3. Powered by compressed air: an air horn. 4. Containing or inflated by air.

Jul 29, 2024 · Nearly all of Earth's atmosphere (air) is comprised of a mere five gases: nitrogen, oxygen, water vapor, argon, and carbon dioxide. Several other compounds are also present in …