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!
In Michigan, Lake Erie and Lake Ontario are connected by the Erie Canal. Is this what you are looking for?
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Among the choices the answer should be D which is "had to be Christians and establish permanent residency."