Why why why?

Question

Why the inside of the Earth is so hot?

Answer 1

It's like that because it don't have seasons, and it don't because, you know that the Earth is leaning and spinning around the sun. When the top is leaning to the sun it's summer time above the Equator and Winter time below the Equator. When the Earth go on the other side of the sun it's summer time below the Equator and winter time below it. But in the middle it never lean away so it stay hot.

Answer 2

Once the radiation from the Sun penetrates the earth,some of the heat at the surface of the earth reflects back into space. The remainder of the heat becomes absorbed as part of the atoms in the earth.What is not absorbed into the atom remains outside the atom .the Center of the earth is where there is no exit, heat gets concentrated there.
As the earth gets closer to the sun it speeds up ,and as it does so it loses mass. As it moves away from the sun it gains mass. The cycle continues and as the earth gains more and more energy from the sun its orbit expands to maintain gravity equil ibrium.The heat loss and gained at the center of the earth is responsible for the gravity energy cyle changes.

Answer 3

There are two main reasons. First is that there is still heat left over from when the earth formed 4.6 billion years ago (rock is a good insulator so this heat doesn't escape very well). The second source of heat in the Earth's interior is from the decay of naturally occurring radioactive elements.

Answer 4

Accretion heat, radioactive decay, heat of crystallization of the inner core, and a 1000+ miles thick thermal insulation blanket down from the surface.

Answer 5

it continues to be so since its formation.