Sunspots appear dark because they are ___________than the surrounding solar surface.
A) much closer to the Sun's core
B) more energized
C) less ionized
D) cooler
Correct Answer:
Verified
Q72: Examine the words and/or phrases below and
Q73: The Sun is considered an_star.
A) small
B) large
C)
Q74: Yellow stars have a higher luminosity than_
Q75: Shorter wavelengths correspond to _energetic photons.
A) moderate
B)
Q76: Examine the words and/or phrases below and
Q78: Galileo _telescopes.
A) did his work before the
Q79: Examine the words and/or phrases below and
Q80: What fuel is the source of energy
Q81: The nuclear reaction process of converting hydrogen
Q82: When several radio telescopes are connected together,
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