The Sun's source of energy at the present time is
A) thermonuclear fission (splitting) of heavy elements into hydrogen.
B) thermonuclear fusion (combination) of hydrogen atoms.
C) the chemical burning of hydrogen gas with oxygen.
D) gravitational contraction.
Correct Answer:
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Q178: Filaments and solar prominences are part of
Q179: What is the name of a sudden,
Q180: Which of these is NOT a characteristic
Q181: In the thermonuclear process that is thought
Q182: The solar wind is strongest
A) near the
Q184: What is nuclear fusion?
A) nucleus transforming into
Q185: Nuclear fusion is the
A) combining of electrons
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Q188: The solar wind is almost entirely ionized
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