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Chapter 22 Section 1 Review Page 554 (1-4)

Chapter 22 Section 1 Review Page 554 (1-4). 1. Describe the composition of dry air at sea level. Nitrogen = 78% Oxygen = 21% Argon = 0.9% Other gases (like CO 2 < 0.1%. Gases in the Atmosphere. 2. Identify five main components of the atmosphere. Nitrogen Oxygen Water Vapor

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Chapter 22 Section 1 Review Page 554 (1-4)

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  1. Chapter 22 Section 1 Review Page 554 (1-4)

  2. 1. Describe the composition of dry air at sea level. • Nitrogen = 78% • Oxygen = 21% • Argon = 0.9% • Other gases (like CO2 < 0.1%

  3. Gases in the Atmosphere

  4. 2. Identify five main components of the atmosphere. • Nitrogen • Oxygen • Water Vapor • Ozone • Particulates

  5. Particulates

  6. 3. Explain the cause of atmospheric pressure. • Atmospheric pressure is caused by the weight of atmospheric gases as a result of gravity pulling the gas molecules toward Earth.

  7. Atmospheric Pressure

  8. Mercury Barometer

  9. Aneroid Barometer

  10. 4. Identify the layer of the atmosphere in which weather occurs. • Weather happens in the troposphere.

  11. Weather in the Troposphere

  12. The End…..

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