What can cause the composition of earth to change?



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    The composition of the majority of the Earth, that is everything below the crust, was formed over 4 billion years ago when the Earth first cooled into a spinning ball of rock. Once this happened, there could be nothing done to change the inner structure of the Earth, and asteroid and meteor strikes as well as volcanic eruptions could only significantly change the surface of the Earth. The only way for the Earth to have its composition reshaped would be for the Earth to be completely destroyed, annihilated, blown into nothingness until it can be formed again. But if this were to happen, who’s to say the same couldn’t form all over again.

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