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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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

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

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

A very cold high pressure that originates over the Arctic Ocean.

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

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

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.