What causes the earth’s magnetic field?
a.
the mineral composition of the earth’s crust
b.
magnetic particles located at the earth’s poles
c.
molten material in the mantle
d.
currents in the earth’s liquid-metal outer core

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers

answer; ///animal spirits;