Answer the following question given this paragraph: The most noticeable magnetic activity of the Sun is the appearance of sunspots. Sunspots are cooler, darker areas on the Sun's surface ( Figure below ). Sunspots occur in an 11 year cycle. The number of sunspots begins at a minimum. The number gradually increases to the maximum. Then the number returns to a minimum again. Q: What is the name for the cooler, darker areas on the sun's surface? Choices: - corona - aurora borealis - anomalies - sunspots A:
The answer to this question is:
sunspots