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Air Pressure

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Subject: 
Environmental Science
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Atmospheric sciences
Meteorology
Atmospheric thermodynamics
Psychrometrics
Inorganic solvents
Oxides
Atmospheric dynamics
Properties of water
Low-pressure area
Humidity
Water vapor
High-pressure area
Weather
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
Human behavior
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Environment

Air Pressure The weight of the air above Earth?s surface Thanks to gravity, the atmosphere has weight. What affects air pressure? Altitude ? air pressure decreases the higher you go up 2 miles up Sea level Decreasing Air Pressure Higher Concentration of air molecules Gravity forces most air molecules to remain close to Earth?s surface Cold air is more dense than warm air Cold air has higher air pressure because the molecules are closer together v v COLD HOT Warm air has LESS air pressure because molecules are farther apart COLD HOT Which air mass can hold more water vapor? v v COLD HOT v v c COLD HOT Air Molecule Water Molecule Warmer air can hold more water molecules than cooler air

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