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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 periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

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

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.