Physics, 06.05.2020 18:02 tradee001

What does a protoplanetary disk most likely have in common with Earth's Solar System?
A.
They both decrease in gravity as they accumulate more mass.
B.
They both are in motion and are held together by gravity.
C.
They both have well-defined planets that orbit due to gravity.
D.
They both have planets that have formed without gravity.

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What does a protoplanetary disk most likely have in common with Earth's Solar System?
A.
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