What is a common result of sunspot activity?

The correct answer highlights the relationship between sunspot activity and telluric currents. Sunspots are temporary phenomena on the Sun's photosphere that are associated with solar magnetic activity. These spots lead to an increase in solar flares and coronal mass ejections (CMEs), which can alter the Earth's magnetic field and generate fluctuations in telluric currents. Telluric currents are natural electric currents that flow in the Earth, and they can be significantly influenced by changes in the ionosphere caused by solar activity.

Understanding this connection is essential because it underscores the impact of solar phenomena on geophysical processes. The fluctuations in telluric currents can affect various applications, including cathodic protection systems, communication systems, and other technologies that rely on stable electrical conditions.

In contrast, while increased temperature can be associated with broader solar activity trends, it is not a direct result of sunspot activity alone. Disruption of electronic devices may occur due to solar flares and CMEs, but that is more a secondary effect rather than a direct result attributed solely to sunspots. Pollution of groundwater does not have any direct correlation with sunspots or solar activity, making it irrelevant in this context. Focusing on the impact of sunspots on telluric currents provides