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Weather & Climate
Earth aand Space Science
| Term | Definition |
|---|---|
| acceleration | a change in the velocity (speed, direction, or both) of a body |
| air mass | a large volume of air that, at a given altitude in the atmosphere, has fairly uniform properties (such as temperature and moisture content) that reflect the region where the air mass formed. |
| applied force | a force that is applied to an object, usually by a person or by another object. |
| Archaea | one of three domains of living organisms; single-celled prokaryotic micro-organisms that lack a nucleus; similar in size and shape to bacteria; often found in harsh environments. |
| atmosphere | layers of gas that surround a planet |
| autotroph | any organism that can create its own food from inorganic materials |
| average speed | the distance traveled by an object divided by time it traveled. |