Atmosphere and Air Pressure

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14 Terms

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atmosphere

a mixture of gases that surrounds Earth. Contains 78% nitrogen, 21% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases, including water vapor

<p>a mixture of gases that surrounds Earth. Contains 78% nitrogen, 21% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases, including water vapor</p>
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altitude

height above sea level or the earth's surface

<p>height above sea level or the earth's surface</p>
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troposphere

The lowest layer of the atmosphere and contains weather. Temperature decreases with higher altitude.

<p>The lowest layer of the atmosphere and contains weather. Temperature decreases with higher altitude.</p>
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stratosphere

the layer of the atmosphere that is above the troposphere. Temperature increases with higher altitude.

<p>the layer of the atmosphere that is above the troposphere. Temperature increases with higher altitude.</p>
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ozone

a form of oxygen gas inside the stratosphere, absorbs ultraviolet rays from the sun

<p>a form of oxygen gas inside the stratosphere, absorbs ultraviolet rays from the sun</p>
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mesosphere

the layer of the atmosphere between the stratosphere and thermosphere. Temperature decreases with higher altitude.

<p>the layer of the atmosphere between the stratosphere and thermosphere. Temperature decreases with higher altitude.</p>
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thermosphere

Upper most layer of Earth's atmosphere; has two layers ionosphere and exosphere. Temperature increases with altitude.

<p>Upper most layer of Earth's atmosphere; has two layers ionosphere and exosphere. Temperature increases with altitude.</p>
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Ionosphere

the lower part of the thermosphere, where electrically charged particles called ions are found

<p>the lower part of the thermosphere, where electrically charged particles called ions are found</p>
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Exosphere

The outer layer of the thermosphere, extending outward into space.

<p>The outer layer of the thermosphere, extending outward into space.</p>
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greenhouse effect

earth's atmosphere traps solar radiation, caused by the presence in the atmosphere of gases such as carbon dioxide, water vapor, and methane.

<p>earth's atmosphere traps solar radiation, caused by the presence in the atmosphere of gases such as carbon dioxide, water vapor, and methane.</p>
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air pressure

the pressure caused by the weight of a column of air pushing down on an area

<p>the pressure caused by the weight of a column of air pushing down on an area</p>
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weather

The condition of Earth's atmosphere at a particular time and place.

<p>The condition of Earth's atmosphere at a particular time and place.</p>
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water vapor

water in the form of a gas

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barometer

An instrument that measures atmospheric pressure

<p>An instrument that measures atmospheric pressure</p>