February 23, 2017

Homework Help: Physics

Posted by Hannah on Friday, December 18, 2009 at 7:16pm.

1) Is it accurate to describe the physical universe as composed of only matter and energy?

2) How is it possible that only 92 elements are found in the natural world but there are millions of different types of molecules?

I really have no clue about these questions. Please help!!

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