The Sun's photosphere is, by mass, about 25%
A) helium.
B) carbon.
C) hydrogen.
D) oxygen.
Correct Answer:
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Q48: The Sun projects charged particles into space,
Q49: The temperature of the Sun's interior is
Q50: The Sun's energy is generated from the
Q51: The three fusion reactions in the Sun
Q52: It is not true that the neutrino
A)
Q54: Patches of cooler material on the Sun's
Q55: The celestial equator is
A) a great circle.
B)
Q56: Enormous filaments of excited gas arching over
Q57: The Sun's high-speed charged nuclei and electrons
Q58: The Sun is a
A) moon.
B) galaxy.
C) planet.
D)
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