Why Is the Temperature at the Region of a Sunspot

question 68

Multiple Choice

Why is the temperature at the region of a sunspot cooler than the photosphere

• A)They are holes in the photosphere that reveal the lower temperature gases in the deeper layers.
• B)They represent points where streams of cool gas from the corona lower the temperature in those regions of the photosphere.
• C)Powerful magnetic fields in the sunspots act upon the atoms of the photosphere to prevent them from emitting light.
• D)Powerful magnetic fields inhibit the convective flow of the gases of the photosphere downward, allowing them to cool for longer than would normally be permitted.

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