[ Vocabulary ]

Dark areas on the Sun’s photosphere that result from variations in the Sun’s magnetic field are?

A. Sunspot
B. Black hole
C. Solar flare
D. Solar black spot

Select your answer:
A  B  C  D  E 

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Start x BeginTensesGeneral Knowledge

Other quiz: Idioms

Will the last one to leave please put ___the candles?

a. out
b. in
c. by

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