Exploring Earth's Atmosphere
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Questions and Answers

Which gas makes up the largest percentage of dry air by mole fraction?

  • Oxygen
  • Carbon dioxide
  • Argon
  • Nitrogen (correct)

    • What is the average amount of water vapor in the atmosphere at sea level?

  • 20.95%
  • 0.4%
  • 1% (correct)
  • 0.93%

    • What is the main function of Earth's atmosphere?

  • To absorb ultraviolet solar radiation
  • To create pressure
  • To reduce temperature extremes between day and night
  • To retain heat through the greenhouse effect (correct)

    • What is the percentage of oxygen in dry air by mole fraction?

    <p>20.95%</p> Signup and view all the answers

    What is the percentage of carbon dioxide in dry air by mole fraction?

    <p>0.04%</p> Signup and view all the answers

    Which gas makes up the largest percentage of Earth's atmosphere by mole fraction?

    <p>Nitrogen</p> Signup and view all the answers

    What is the average amount of water vapor in the entire atmosphere?

    <p>0.4%</p> Signup and view all the answers

    What is the main function of Earth's atmosphere?

    <p>Allowing life and liquid water to exist on the Earth's surface</p> Signup and view all the answers

    What is the percentage of argon in dry air by mole fraction?

    <p>0.93%</p> Signup and view all the answers

    What is the diurnal temperature variation?

    <p>The variation in temperature between day and night</p> Signup and view all the answers

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