Aurora Borealis (Northern Lights) are observed mostly frequently during high sunspot counts. Which year was the BEST to view Aurora Borealis?
*
2 points
Captionless Image
A) 1986
B) 1988
C) 1989
D) 1992
*
2 points
Captionless Image
A) 1986
B) 1988
C) 1989
D) 1992