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Biology, 16.09.2019 23:50 KRAL165

Dark spots on the photosphere are known as
a. the corona.
b. solar wind.
c. sunspots.
d. the chromosphere. user: which type of electromagnetic radiation cannot be focused?
a. gamma rays
b. ultraviolet
c. infrared
d. x-rays

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Dark spots on the photosphere are known as
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