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Home Q & A Board Science-Related Homework Help Physics
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symbo symbo
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7 years ago
What is the average length of a complete cycle of sunspots and magnetic fields on the Sun?
   A)  22 years    B)  7 years    C)  4.5 years    D)  11 years
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Discovering the Universe

Discovering the Universe


Edition: 7th
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discovererdiscoverer
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