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Evolution. Apes evolved in humans. The Earth only started out with some humans but because of reproduction new people were born, and it carried on for many generations and now the Earth has about 7 billion people on it.
D. ancient seas because sedimentary rocks form when there is alot of pressure.
It’s pure entertainment and people love it and I don’t know
<span>"Institution of the draft" & "</span><span>Increasing body count"</span>