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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

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

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

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

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

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

A cloud of irregular appearance, composed of irregular cloud fragments.

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

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

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

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