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

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

Perhaps you have come across them, maybe you are seeing them for the first time. These clouds, known as wave clouds, resemble...

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

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

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

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

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

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

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