What is a plage?
A) sudden eruption on the photosphere in the vicinity of a sunspot group
B) region in the corona that looks bright against the darkness of space but dark against the brighter photosphere
C) bright area in the chromosphere
D) bright area on the photosphere
Correct Answer:
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Q141: The reason sunspots are cooler than the
Q142: How can astronomers BEST observe the 5-minute
Q143: A solar plage is a
A) cooler region
Q144: One of the phenomena that accompanied the
Q145: Which recently discovered fact about the Sun
Q147: Which of these is NOT considered to
Q148: The Maunder minimum is the name given
Q149: What is helioseismology?
A) study of the Sun's
Q150: Mean temperatures in Europe during the Maunder
Q151: Solar magnetic activity at the present time
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