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What is Acid Rain?

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

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Glossary

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....