Sunspots are
A) cooler, darker regions on the Sun's surface.
B) the shadows of cool, dark clouds of matter hanging above the solar surface.
C) cooler regions of the Sun's high corona.
D) hotter, deeper regions in the Sun's atmosphere.
Correct Answer:
Verified
Q93: Sunspots appear dark because they
A) are coronal
Q94: How does the number of sunspots on
Q95: A typical sunspot group lasts
A) virtually forever.
B)
Q96: What is the average length of
Q97: The Stefan-Boltzmann law indicates that the energy
Q99: Other stars
A) have never been detected producing
Q100: What is the solar wind?
A) storm of
Q101: Over the course of a sunspot cycle
Q102: The rotation of the Sun is
A) slowest
Q103: Galileo observed the phenomenon of solar rotation
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