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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 decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

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

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

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

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

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

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

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....