A newly formed planet or large asteroid becomes molten due to
A)the last infalling objects.
B)decay of radioactive element isotopes.
C)the last infalling objects and decay of radioactive element isotopes.
D)none of the other choices as newly formed planets remain solid inside.

Question

Quizplus · Accepted Answer

Newly formed planets or large asteroids become molten due to a combination of the last infalling objects and the decay of radioactive element isotopes. The impact of objects contributes to the heat production, while the decay of radioactive isotopes in the planet's interior provides a continuous source of heat. This results in the melting of the planet's interior and the formation of a molten core.

A Newly Formed Planet or Large Asteroid Becomes Molten Due