Increase of Oxygen Levels

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Created by
Olu

Cards (6)

  • What process do algae and plants go through?
    Photosynthesis
  • What happens during photosynthesis?
    Carbon dioxide and water react to produce glucose and oxygen
  • What is the fully balanced equation for photosynthesis?
    6CO ₂ + 6H ₂ O ---> C ₆ H ₁₂ O ₆+ 6O ₂
  • How many years ago did algae start producing oxygen?
    2.7 billion years ago
  • What happened after algae started producing oxygen?
    Over the next billion years, plants evolved and the amount of oxygen in the atmosphere increased
  • What happened that allowed animals to evolve?
    The level of oxygen in the atmosphere increased