The Earths Evolution

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  • Methane,Carbon Dioxide,Ammonia Nitrogen! 4.5 BIllion Years Ago
  • We were formed by the rain filling up the hollows in the solid crust!
  • CO2 dissolved in oceans, then concentrated into the shells of sea creatures as calcium carbonate! 3.8 Billion Years Ago!
  • Nitrogen levels rose because there was more nitrogen in the soil! 500 Million Years Ago!
  • One theory is that all us photosynthetic organisms were created on the ocean floor and all we needed was was a simple cell to evolve!
  • O2 levels rose because the algae (small plants) were taking in the carbon dioxide and making it into oxygen! 200,000 years ago!
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