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The Homo Sapiens were the first modern humans. They evolved from the predecessors that were the early homids. Records show that they started to move outside of Africa 70,000 or 100,000 years ago.
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The main reason that Pangea began to break up is a new material that caused it to rift. This new material was formed due to the crust of the Earth and not being able to support the super continent.
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Pangea was the name of the "Super Continent". This continent was a huge land mass that would connect two or more continents together.
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The Five major mass extinctions were: Ordovican, Devonian, Permian, Triassic, Cretaceous
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The life of Multicelluar organisms began a billion years after the 1st forms of life appeared. These organisms then started to evolve to fish or plants
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The oxygen that is in the Earth's atmosphere came from an organism called Cyanobacteria which is a blue-green algae. The Microbes in this organism use sunshine, water, and carbon to produce the oxygen.
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Many scientist believe that Eukaryotes and Prokaryotes formed and evolved years apart. It is thought that Eukaryotes formed on Earth when there was little or no oxygen.
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With Eukaryotes coming in a little later, the first forms of life began with the single celled prokaryotic cells. Examples of these cells could be bacteria which was able to withstand the toxic atmosphere Earth had at the time.
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Throughout the process the creation of Earth, there were many meteorites landing at it. After, the Earth begin to cool which then led the surface to solidify.
