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

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

The branch of science dealing with the laws of motion of air or other gases.

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

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

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

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

Snow that rises to 8 feet or higher.