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15 Cards in this Set
- Front
- Back
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What is the Troposphere?
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The troposphere is the layer of the atmosphere where the weather occurs like rain, snow and storms.
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What is the Mesosphere?
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The mesosphere is the layer of atmosphere that protects the earth's surfaces from being hit by meteoroids
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What is the thermosphere?
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The thermosphere is the layer of atmosphere that extends over 80km into outer space. it has no definite outer limit.
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What is the stratosphere?
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The stratosphere is the outer layer of earth which contains the ozone layer and absorbs .ultra violet radiation.
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What is the ionosphere?
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The layer of atmosphere that reflects radio waves back to earth.
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What is the exosphere?
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the exosphere is the layer of atmosphere were phone calls and television pictures are relayed by ways of communications satellites that orbit the earth.
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What are the four main layers of atmosphere?
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the four main layers of atmosphere are the troposphere,stratosphere,thermosphere and mesosphere.
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What is a barometer?
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an instrument used to measure air pressure.
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What is air pressure?
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The result of weight of a column of air pushing down on an area.
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What is atmosphere?
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Atmosphere is the envelope of gases that surround the planet.
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What is the earths atmosphere made up of?
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The earths atmosphere is made up of oxygen.nitrogen,carbon dioxide, water-vapor,and many other gases as well as particles of liquid and solid.
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What are the gases in dry air? name the percentages.
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nITROGEN- 78 %
OXYGEN- 21& OTHER GASES ( MAINLY ARGON AND CO2)- 1% |
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how is the atmosphere important to life on earth?
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1. By trapping enrgy from the sun, the atmosphere keep s most of earths surface warm enough for water exists as a liquid.
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how is the atmosphere important to life on earth?
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It prevents meteoroids from hitting the earth
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how is the atmosphere important to life on earth?
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protects living things from dangerous radiations of the sun.
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