Answer:
fossils are ancient bones or plants fossilized into rocks such as dinosaur bones(fossils) and they help unveil earths history by telling us more about them and what they might have looked like and big or small they were everything we know we know because of fossils
Explanation:
If brainiest is earned its greatly Appreciated
The theory of Continental Dift
The answer is b i believe sorry if i am wrong
The main source of heat energy in the earth's inner core is radioactive decay, and the radiogenic heat producted by the radiogenic decay of isotopes in the mantle and crsut. I hope this helped