Geography

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USA

Industry: Geography

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Geography

Territory

Geography; Geography

A specific area or portion of the Earth's surface; not to be confused with region.

Tephra

Geography; Geography

Solid material of all sizes explosively ejected from a volcano into the atmosphere.

Rain that has become more acidic than normal (a pH below 5.0) as certain oxides present as airborne pollutants are absorbed by the water droplets. The term is often applied generically to all acidic ...

Aerosol

Geography; Geography

Fine liquid or solid particles suspended in the atmosphere. Aerosols resulting from volcanic eruptions are tiny droplets of sulfuric acid—sulfur dioxide that has picked up oxygen and water.

Air mass

Geography; Geography

A very large body of atmosphere defined by essentially similar horizontal air temperatures. Moisture conditions are also usually similar throughout the mass.