Question

a magnetic field protects earth from the suns high - energy particles. what two processes are involved in the formation of earths magnetic field?
the movement of materials in earths mantle and earths rotation
the movement of metals in earths core and earths rotation
the movement of solar wind toward earth and earths revolution
the movement of eruptions from the suns surface and earths revolution

Explanation:

Earth's magnetic field forms via the geodynamo effect. This relies on the convective movement of molten, conductive metals (iron and nickel) in Earth's outer core, combined with Earth's rotation, which organizes this moving conductive material into a sustained magnetic field. The other options are incorrect: mantle movement does not drive the magnetic field, solar wind/Sun eruptions are external to Earth's magnetic field formation, and Earth's revolution around the Sun is unrelated to this process.

Answer:

the movement of metals in Earth's core and Earth's rotation