Answer:
compound
Explanation:
a substance made from two or more different elements that have been chemically joined. Examples of compounds include water (H2O), which is made from the elements hydrogen and oxygen, and table salt (NaCl), which is made from the elements sodium and chloride.
There is the ocular lens and the convex lens.
No, the magnetic North Pole doesn't move every 37 days. I believe.
<span>Energy created by the flow of electrons through a conductor
</span>
Electrical Energy