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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

An instrument for measuring atmospheric pressure.

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

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

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

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

The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...

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

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...