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
4 Gases in the Atmosphere
5 2. Identify 5 main contents of the atmosphere.Nitrogen Oxygen Water Vapor Ozone Particulates
6 Particulates
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.
8 Atmospheric press
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.
10 Mercury Barometer
11 Mercury Barometer
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.
13 Aneroid Barometer
14 5. Determine the class of the environment in i beg your pardon weather occurs.
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Weather wake up in the troposphere.
15 Weather in the Troposphere
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)
17 Layers that the Atmosphere
18 7. Determine the two atmospheric layers that contain air as warmth as 250 C?The troposphere and also the thermosphere
19 Temperature arrays of Layers25o C 25o C Thermosphere Troposphere
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.
