What are the causes of high temperatures inside Earth?

Select all that apply Please?

friction caused by Earth’s fast rotation
radioactivity due to heavy elements
heat trapped from when Earth formed
various fossil fuels burning slowly

D

Explanation:

D is the only one that makes sense. friction isn't possible as The entire planet doesn't collide with anything, this it can't cause friction. And heavy elements aren't guaranteed to let off heat.

Unless this question is talking about the earth's core. if it talks about the earth's core, then it would be A, B and C.

I hope this clarifies it. Good luck.

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

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