The source of the Sun's energy is ___________.
A) nuclear fusion
B) heat of contraction
C) potential energy
D) chemical burning
E) nuclear fission
Correct Answer:
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Q46: The most explosive events to occur on
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Q48: The solar wind originates from _.
A) the
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Q53: The corona is about _degrees Kelvin.
A) 150
B)
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Q55: Hydrogen "burning" in stars is _.
A) an
Q56: Hale discovered that sunspots were associated with
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