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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

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

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

An instrument for measuring atmospheric pressure.

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

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

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...