How does the inner core affect earth?

How It Began:

Earth's ever-increasing gravity pulled in particles, lumps, meteoroids, asteroids, and larger bodies, causing the earth to accumulate mass during its formation.

The denser component material was pulled toward the center of the earth by increasing gravity, forming the inner core, which is primarily composed of iron and nickel with heavy metals added. As the inner core expanded, the temperature increased significantly due to the gravitational force pressing the metals closer together with great force, and concurrent nuclear reactions.

Durable Repercussions:

The earth's rotation, which began as large bodies collided with or were added to its structure, will continue until a collision with a very large space object (asteroid or larger) occurs. It was a collision with a large space object that gave the earth its tilt and four seasons for the temperate climate zones. With the heavy inner core, the earth's orbit and rotation will remain stable over the long term, giving us day and night and summer and winter.

Since the inner core is thought to be moving at a different speed than the outer core, the intense heat of the inner core keeps the outer core a dense liquid with convection currents directed by the earth's spin. These swirling convection currents create the magnetic field that protects Earth from deadly cosmic rays and keeps us oriented correctly for travel.

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Earth is impacted by the inner core because it produces its magnetic field through the geodynamo process, which protects Earth from solar radiation, keeps the planet rotating steadily, and feeds the convection currents in the outer core that power plate tectonics and mantle dynamics.