During a period of high solar activity, the corona:
A) Disappears
B) Is more irregular
C) Cools almost to the temperature of the photosphere
D) Becomes smooth and even
E) Shrinks to half its normal size
Answer: B
During a period of high solar activity, the corona:
A) Disappears
B) Is more irregular
C) Cools almost to the temperature of the photosphere
D) Becomes smooth and even
E) Shrinks to half its normal size
Answer: B