Why Is the Temperature at the Region of a Sunspot

question 69

Multiple Choice

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

• A)Sunspots are holes in the photosphere that reveal the lower-temperature gases in the deeper layers.
• B)Sunspots 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 in the sunspots inhibit the convective flow of the gases of the photosphere downward, allowing the area to cool for longer than would normally be possible.

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