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Formation of the Solar System
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1
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What force was responsible for triggering the formation of the solar system?
A)nuclear fusion
B)nuclear fission
C)electromagnetism
D)gravity
E)magnetism
2
Where does most of the matter originally present in the solar nebula end up in the solar system?
A)in the inner planets
B)in Jupiter
C)in meteoroids
D)in the Sun
E)in asteroids
3
As the solar nebula collapsed, what happened to it?
A)its rate of rotation increased
B)it became more dense in the center
C)it flattened into a disk
D)it began to clump together
E)all of the above
4
What happened when the gas in the central bulge of the nebula became dense enough for hydrogen to begin to undergo nuclear fusion?
A)the sun began to shine
B)the sun began to produce helium
C)the solar nebula stopped rotating
D)the planets began to form
E)both a and b
5
How did planets begin to form in the solar nebula?
A)ice and rock solidified from a vapor in the nebula
B)ice and rock collected together due to electrostatic attraction
C)dust and gas clumped together due to electrostatic attraction
D)dust and gas clumped together due to gravitational attraction
E)both b and c







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