Except D.
Pollution doesn't prevent cancer.
Unless the pollution is made of a cancer-curing medicine.
Answer:
I just finished a unit on Scientific Method in my science class! Anyway, it's defined in the screenshots below. Hope this helps!
<span>The theory general relativity was discovered by Albert Einstein </span>
carbon atoms form 2 bonds with sharing valence electrons
Pure air is a mixture of several gases that are invisible and odorless. Consists of 78% nitrogen, 21% oxygen, and less than 1% of argon, carbon dioxide.