Final answer:
The formation of sunspots at 30 degrees N and S of the equator indicates the Sun is in its active phase of the solar cycle.
Step-by-step explanation:
Sunspots are regions on the Sun's surface where the temperature is cooler than the surrounding area. The formation of sunspots at 30 degrees N and S of the equator indicates the Sun is in its active phase of the solar cycle. This is because sunspots form in areas where the Sun's magnetic field is strongest. During the active phase, the number of sunspots increases, and they tend to form closer to the equator. As the solar cycle progresses, the number of sunspots decreases, and they start to form further away from the equator.