What? No picture or no question.
Smog. Im pretty sure smog is the only unhealthful air pollution on this list.
Chemoreceptors is the answer
Answer:
I believe your answer should be B.) Materials were pulled together by gravity. I hope this helps you!
Answer:
A covalent bond forms between two Nonmetals!
Explanation:
A covalent bond always forms between the electrons of two Nonmetals.
hope it helps!
