Multiple Choice
An early theory of solar system formation was the tidal hypothesis-the idea that a star passed close enough to the Sun to draw out a long filament of material that then condensed to form the planets and other solar system bodies. Why was this theory discredited?
A) A star this close to the Sun would form a binary star system rather than the single star we actually have.
B) Such a long filament would be thickest near the Sun and would form the largest planets there.
C) Stars move so slowly that any star this close to the Sun four and a half billion years ago would still be in the solar vicinity.
D) Tidal forces strong enough to pull a filament out of the Sun would also be strong enough to cause it to disperse before it could condense into planets.
Correct Answer:

Verified
Correct Answer:
Verified
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