Unit 2: The Atmosphere - The Evolution of the Atmosphere

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1. By which process was oxygen first released into the atmosphere?

  • Aerobic Respiration
  • Photosynthesis
  • Anaerobic Respiration
  • Oxidation
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Other questions in this quiz

2. Which of these gases do volcanoes release?

  • Argon
  • Methane
  • Nitrogen Dioxide
  • Oxygen

3. Ozone is made of how many oxygen atoms?

  • Three
  • Four
  • One
  • Two

4. What sort of electromagnetic radiation split molecules of oxygen to form ozone?

  • Ultraviolet
  • X-Rays
  • Microwaves
  • Visible Light

5. What is the purpose of the ozone layer?

  • To block visable light
  • To block harmful microwaves
  • To block harmful UV radiation
  • To keep UV radiation on Earth


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