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Lesson overview:Plants & the atmosphere

  • Describe how carbon dioxide and oxygen levels have changed over the Earth's history
  • Explain how plants have affected the levels of oxygen and carbon dioxide in the atmosphere
  • Describe and explain recent human activities that are affecting carbon dioxide levels.
  • Describe how carbon dioxide and oxygen levels have changed over the Earth's history
  • Explain how plants have affected the levels of oxygen and carbon dioxide in the atmosphere
  • Describe and explain recent human activities that are affecting carbon dioxide levels.

In this lesson we will describe how carbon dioxide and oxygen levels have changed over the Earth's history and explain how plants have affected the levels of oxygen and carbon dioxide in the atmosphere. We will finish by describing and explaining the impact of recent human activities on carbon dioxide levels.