Glossary Section A

Created by rondodudeawesomeman 

Upgrade to
remove ads

Abiotic Factor

A nonliving part of an organism's habitat.

Abrasion

The grinding away of rock by other rock particles carried in water, ice, or wind.

Acid Rain

Rain that contains more acid than normal

Acidic

Describes a substance that reacts strongly with metals and changes blue litmus paper red

Adaptation

A behavior or physical characteristic that helps an organism to survive in its habitat

Aftershock

An earthquake that occurs after a larger earthquake in the same area

Air Mass

A huge body of air that has similar temperature, humidity, and air pressure throughout

Air Pressure

the result of the weight of a column of air pushing down on an area

Alluvial Fan

a wide, sloping deposit of sediment formed where a stream leaves a mountain range

Altitude

Elevation above sea level

Anemometer

An instrument used to measure wind speed

Aneroid Barometer

an instrument that measures changes in air pressure without using a liquid

Anticyclone

A high-pressure center of dry air

Aquaculture

The farming of water Organisms

Asthenosphere

The soft layer of the mantle on which the lithosphere floats

Atmosphere

Earth's envelope of gases

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set