14 is water and although I made sure to look at the passage I knew that it was water anyway because water is not considered to be a living organism but it contains many different living organisms.
15 would be D
16 would be A
17 I am not entirely sure but I believe it is C
18 would be A
19 I am not entirely sure but I believe It is B
20 I would believe would be D
I hope I helped!