Answer:
There are 3 main reasons.
1. heat from when the planet formed and accreted, which has not yet been lost.
2. frictional heating, caused by denser core material sinking into the center of the planet.
3. heat from the decay of radioactive elements.
I hope my answer helped!
When he was 32 years old in the cave of hira jibril came to have and told him read! and said verses
Washington defeated a formidable garrison of Hessian mercenaries before withdrawing
The Torah is the Holy book for Judaism
