science comic book

science comic book

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  • Then about 350 million years ago due to photosynthesis more and more plants came to life on Earth creating more and more oxygen which allowed for aerobic life like dinosaurs to come to live on the surface
  • Of course,  the atmosphere today are mainly nitrogen, oxygen, and argon but also has small amounts of other gases like Carbon Dioxide
  • Very cool, but can you just really quickly explain the composition of Earth's atmosphere today?
  • Ok, but what is holding us and everything on Earth down instead of floating off into the atmosphere then space?
  • Well, that would be gravity, every object gives off a gravitational pull onto each other holding everything and everyone down
  • Of course, starting 4.5 BYA there anerobic microorganisms both karyote and eukaryote
  • Very cool but one last thing, can you just quickly explain the evolution of simple organisms into more complex organisms?
  • Then, as the atmosphere started to evolve and change so did the organisms. As you can see in the past slides.
  • Oh ok thank you!!!
  • No problem young man!
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