What is the primary function of a strong magnetosphere generated by a planet's core?

Answer

It deflects charged particles that would otherwise strip away the atmosphere.

A planetary shield, generated by a convecting metallic core, deflects the harsh radiation and solar wind, preventing the gradual erosion of the atmosphere over astronomical timescales.

What is the primary function of a strong magnetosphere generated by a planet's core?

#Videos

What Is the Habitable Zone? - YouTube

Spaceastronomyplanethabitable zoneexoplanet