Answer:
C
Explanation:
Many kinds of air pollution can't be seen, which means A is incorrect. Any kind of pollution can be harmful to you, which means B is incorrect too. Air pollution is very harmful but in most cases can't be directly seen, so C is correct. Pollution can be found everywhere, so D is incorrect also.
It’s not an autosomal disease at all
I believe it that the answer is C. Hope this helps
C
Brown algae
Im pretty sure this is correct
Grapes Maybe?? Sorry I dunno, I just hear purple.