Everyday Science
NULL
Medium
Question
The Sun has a __________-year solar cycle of rising and falling activity.
A
10
B
11
✓ Official correct answer
C
12
D
13
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
10
No member explanations yet for this option.
B
11
No member explanations yet for this option.
C
12
No member explanations yet for this option.
D
13
No member explanations yet for this option.
Explanation
The solar cycle averages about 11 years.
So the correct answer is 11.
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