Could anyone please answer this question with an explanation?
Hi,
The main gist of the passage is as follows:
shallow waterâ>easily polluted by nutrient rich sewage
more nutritionâ>algae multiplies
more algaeâ>food for toxic microorganisms
toxic microorganismsâ> most fishes die
Options:
A] Fishes mostly die because of pollution rather than some other way
(Incorrect- no comparison between pollution and any other way is mentioned)
B] In waters with abundant algae, microorganisms toxic to fish reproduce more quickly than other microorganisms
(Incorrect- no info provided regarding toxic m/o multiplying more quickly than other m/o)
C] Nutrition from sewage do not otherwise harm fish other than resulting in abundant toxic microorganisms
(Incorrect- no info regarding the nutrients and other components not harming the fish)
D]Algae will not multiply in non polluted waters.
(Incorrect- no indication about algae not multiplying in non polluted waters)
E] Overnutrifying waters will result in death of most fishes.
(Correct- most fish die because of toxic m/o due to algae in overnutrified water)
Hope this helps!
1 Like
Thank you. I do have a question. Why the answer is not D? It says algae will multiply in polluted waters, so canât we infer that algae will not multiply in non polluted waters? Block of 4 by Greg.
Yeah, I have the same question. My 1st instinct was to apply the Block of 4 and mark âDâ as my answer
The reason D is not correct is because
- The passage states that the algae will multiply, but it doesnât state that there was no algae before the sewage.No evidence.
- The option also has a tone of extreme language to it âAlgae will not proliferateâ.