TOTO,
we're not in Kansas anymore...

A server error occured and unexplained things are happening around us.

hatijantopraisella

protoplanet 11protoplanet merupakan embrio planet didalam piringan yang tarik menarik satu sama lainnya secara gravitasi dan bertubrukan. tata surya

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geo protoplanet planetesimal.pptx | Presentation by hatijantopraisella