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10.5: Atmospheric Processes- Challenge 1

  • Page ID
    5482
  • 1. The atmosphere is composed of 78% ___ and 21% ___.
    nitrogen; oxygen
    2. Plants need light energy, water, and carbon dioxide for the process of ___.
    photosynthesis
    3. The atmosphere traps warmth like a blanket, keeping Earth's temperature ___, allowing life to exist.
    moderate
    4. What gas is the most abundant in Earth's atmosphere?
    nitrogen
    5. Humidity is a measure of the amount of water ___ in the air.
    vapor
    6. Mountain climbers prepare for their journeys by setting up camp at gradually higher and higher elevations, acclimating to the ___.
    less dense atmosphere
    7. ___, or mass per unit volume, is a measure of how closely molecules are packed together.
    Density
    8. Elevation, or height above sea level, is also called ___.
    altitude
    9. Atmospheric ___ occurs when the planet's surface warms the bottom of the troposphere, decreasing its density and causing it to rise. At the same time, the air above is relatively cool and sinks.
    convection
    10. What is the order of layers of the atmosphere, from lowest to highest altitude?
    troposphere, stratosphere, mesosphere, and thermosphere
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