Approximately how much mass was there in the protoplanetary disk out of which the planets formed, compared to the mass of the Sun?
A) "50 percent"
B) "25 percent"
C) "10 percent"
D) "5 percent"
E) "$\lt$ 1 percent"

Question

Quizplus · Accepted Answer

The mass of the protoplanetary disk was approximately 1 percent of the mass of the Sun.

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