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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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

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

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

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...