how the earth was formed pt.2b


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  • By using radiometric dating we discovered that most of the rocks on earth are younger than earth itself because of erosion caused by forces like plate tectonics pushing magma through the earth's crust causing volcanic eruptions.
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  • Soon after something called stromatolites created thousand of cyanobacteria, which is how the earth began to fill with oxygen. it took many thousands of years but finally therewas enough oxygen to built a atmosphere.
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  • O=Oxygengen
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  • Now that leaves us with our current earth...a lot went into the process of forming the earth, then scientist having go figure out how it happened. But after all that hard work it leaves us with our beautiful earth.
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