Question

why the outer core of Earth is made of molten?​

Answer 1

Answer:

Coriolis forces, an artifact of Earth's rotation, cause convection currents to be spiral. The liquid iron in the outer core is an excellent electrical conductor, and creates the electrical currents that drive the magnetic field.

Answer 2

Answer:

1 reason that heat from when the planet formed and accreted

2 Frictional heating caused by denser core material sinking to the centre of the planet

3 Heat from the decay of radio active elements.

Ok. this is the answer