Physics
Physics, 11.07.2019 06:30, crawfordricky84

The earth is made mostly of metals and rocks. where did this material come from? it was made by nuclear fission of uranium and other radioactive materials. it was produced in the big bang. it was created by chemical reactions in interstellar space. it was made by our sun. it was produced by nuclear fusion in stars.

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The earth is made mostly of metals and rocks. where did this material come from? it was made by nuc...

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