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ycow [4]
3 years ago
11

The fish pond are dying because of algal bloom. Algal bloom is caused by the presence of excess phosphorus or sulfur in the pond

. An investigation into the matter indicates hat chemical fertilizers made in a factory nearby are responsible for the presence of these chemicals in the water. Under what conditions might this data be considered biased?

Biology
1 answer:
Masja [62]3 years ago
7 0
D is the only logical answer
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