Answer:
yes, they called it air-pollution because air they get mix up with a chemical and a smoke for burning stuff.
when the air is polluted everyone going to be sick.
I hope this answer helps.
Answer:
I believe it is D
Explanation:
A B C are all symptoms that point towards a concussion but D is not
Yellow bone marrow contains a large percentage of fat.
Either mechanical or physical. I would say physical though.
