Answer:
An element is a material that consists of a single type of atom. Each atom type contains the same number of protons. Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds.
Explanation:
Above
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I
It's B
Explanation:
Because the fossil record shows how organisms have evoluate from relatively simple organisms to more complex organisms
I think the answers are b,d,and e
Answer:
convention currents in the earth's mantle
Explanation:
the convention currents move the plates and that is how plates move
