3 1. Explain the ingredient of dry air in ~ sea level.

You are watching: Describe the composition of dry air at sea level

Nitrogen = 78% Oxygen = 21% Argon = 0.9% various other gases (like CO2

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4 Gases in the Atmosphere

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5 2. Identify 5 main contents of the atmosphere.Nitrogen Oxygen Water Vapor Ozone Particulates

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6 Particulates

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7 3. Define the cause of atmospheric pressure.Atmospheric press is led to by the load of atmospheric gases together a an outcome of heaviness pulling the gas molecules toward Earth.

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8 Atmospheric press

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9 4. Define how the two types of barometers measure up atmospheric pressure.Mercurial Barometer: Atmospheric push pushes ~ above the well at the basic of the barometer. This holds the level of the mercury in the tube at a elevation indicating the air pressure.

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10 Mercury Barometer

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11 Mercury Barometer

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12 4. Describe how the two types of barometers measure atmospheric pressure.Aneroid Barometer: Atmospheric push pushes in ~ above the next of a sealed metal container bring about the sides of the container to bulge in or out, moving the guideline on a scale reflecting the air pressure.

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13 Aneroid Barometer

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14 5. Determine the class of the environment in i beg your pardon weather occurs.

See more: How Much Is 1 Sprig Of Rosemary For Fresh, How Much Dried Rosemary Is A Sprig

Weather wake up in the troposphere.

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15 Weather in the Troposphere

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16 6. Compare the 4 main class of the atmosphere.Troposphere: shortest layer, weather wake up here, greatest pressure Stratosphere: 2nd layer, consists of the ozone layer, it s okay warmer together you walk up Mesosphere: coldest layer, meteors burn up here, gets chillier as you walk up Thermosphere: sexy layer, ionosphere is below so auroras take place here, sexty layer, lowest air press (near zero)

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17 Layers that the Atmosphere

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18 7. Determine the two atmospheric layers that contain air as warmth as 250 C?The troposphere and also the thermosphere

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19 Temperature arrays of Layers25o C 25o C Thermosphere Troposphere

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20 8. Why is atmospheric pressure usually lower in ~ a mass of warm air than beneath a fixed of cold air? Molecules relocate farther apart when they are heated, so there room fewer particles in a offered area come exert pressure.

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