Earth's Atmosphere

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8 Terms

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Atmosphere

the blanket of air that surrounds the Earth.

<p>the blanket of air that surrounds the Earth.</p>
2
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Ozone layer

a thin, protective layer of ozone gas about 50 kilometers above Earth's surface.

<p>a thin, protective layer of ozone gas about 50 kilometers above Earth's surface.</p>
3
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Greenhouse effect

the trapping of heat by certain gases in the atmosphere.

<p>the trapping of heat by certain gases in the atmosphere.</p>
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Troposphere

starts at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). This part of the atmosphere is the most dense. Almost all weather is in this region..

<p>starts at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). This part of the atmosphere is the most dense. Almost all weather is in this region..</p>
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Stratosphere

starts just above the troposphere and extends to 50 kilometers (31 miles) high. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer.

<p>starts just above the troposphere and extends to 50 kilometers (31 miles) high. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer.</p>
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Mesosphere

starts just above the stratosphere and extends to 85 kilometers (53 miles) high. Meteors burn up in this layer

<p>starts just above the stratosphere and extends to 85 kilometers (53 miles) high. Meteors burn up in this layer</p>
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Thermosphere

starts just above the mesosphere and extends to 600 kilometers (372 miles) high. Aurora (Northern Lights) and satellites occur in this layer

<p>starts just above the mesosphere and extends to 600 kilometers (372 miles) high. Aurora (Northern Lights) and satellites occur in this layer</p>
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Exosphere

the upper limit of our atmosphere. It extends from the top of the thermosphere up to 10,000 km (6,200 mi).

<p>the upper limit of our atmosphere. It extends from the top of the thermosphere up to 10,000 km (6,200 mi).</p>

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