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Of or pertaining to layers of gases that surround the Earth of which is retained by Earth's gravitational pull. The atmosphere protects life on Earth.

Contributors in Atmosphere



Natural environment; Atmosphere

Officially known in the Northern hemisphere as the aurora borealis, aurora is a natural light display in the sky particularly seen in high latitude regions. Also known more commonly as the Northern ...

National Oceanic and Atmospheric Administration

Natural environment; Atmosphere

According to the NOAA, 2013 was reported to be the 4th hottest record of all time.The average world temperature was 58.12 degrees tying with 2003 for the 4th warmest since 1880. The hottest year was ...

beaufort wind scale

Natural environment; Atmosphere

A system of estimating and reporting wind speeds. It is based on the Beaufort Force or Number, which is composed of the wind speed, a descriptive term, and the visible effects upon land objects ...

Boyle's law

Natural environment; Atmosphere

States that when the temperature is held constant, the volume of a gas is inversely proportional to its pressure. Therefore, if the pressure increases, the volume decreases and visa versa. For ...


Natural environment; Atmosphere

The intensely bright portion of the sun visible to the unaided eye; the "surface" of the sun. Reaching temperatures estimated at about 11,000°F, it is the portion of the sun's atmosphere which emits ...


Natural environment; Atmosphere

This region is considered the very outer limits of the earth's atmosphere. Its lower boundary is often called the critical level of escape, where gas atoms are so widely spaced that they rarely ...


Natural environment; Atmosphere

A visible aggregate of minute water droplets suspended in the atmosphere at or near the surface of the earth, reducing horizontal visibility to less than 5/8 statute miles. It is created when the ...

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