Question

Why does earth have the strongest magnetic field among the terrestrial worlds? why does earth have the strongest magnetic field among the terrestrial worlds? it is the only one that has both a partially molten metallic core and reasonably rapid rotation. it rotates much faster than any other terrestrial world. it is the most volcanically active world. it is the only one that has a metallic core. it is by far the largest terrestrial world?

Answer 1

It is the only one that has both a partially molten metallic core and reasonably rapid rotation.