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Earth’s atmosphere protects life on the surface by filtering deadly ultraviolet radiation, destroying most meteors that pass through it and retaining heat. The atmosphere also provides oxygen to humans and carbon dioxide... More »

www.reference.com Science Earth Science Atmosphere

Earth's atmosphere, which is around 300 miles thick, is mainly made of nitrogen and oxygen, although there are many other trace substances in its composition. Trace substances make up only 1 percent of the bulk of the at... More »

www.reference.com Science Earth Science

Earth's atmosphere extends approximately 430 miles up from the surface of the planet. The layer that contains most of the air on the planet, the troposphere, also provides the majority of weather events and only goes up ... More »

www.reference.com Science Earth Science Atmosphere
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In addition to providing the oxygen and carbon dioxide necessary to support life on Earth, the atmosphere also blocks harmful radiation from the sun and traps heat to make the surface of the planet habitable. Without the... More »

www.reference.com Science Earth Science Atmosphere

The atmosphere supports life on Earth by protecting it from dangerous electromagnetic radiation, by creating and controlling weather and climate and by providing the gases that plants and animals need to breathe. The atm... More »

www.reference.com Science Earth Science Atmosphere

The ozone layer is important because it filters harmful ultraviolet radiation as it travels from the sun to the surface of the Earth. These ultraviolet rays can harm both plant and animal life. After observation of a dep... More »

www.reference.com Science Earth Science Atmosphere

The atmosphere works as a place to contain the oxygen that is necessary for life, works as a blanket to shield the earth from radiation and helps to create the different types of weather that are felt on the Earth. The a... More »

www.reference.com Science Earth Science Atmosphere