Question

Which of the following is not an effect of retention or uptake of nitrogen and phosphorus in aquatic ecosystem?

(a) Adverse health conditions

(b) Algal blooms

(c) Increase in water quality

(d) Reduction in marine life

The question was posed to me in final exam.

Question is taken from Pollutants Environmental Impact topic in division Environmental Impact of Pollutants and Analysis of Dose – Effect Relationship of Environmental Biotechnology

Answer 1

The correct option is (c) Increase in water quality

Explanation: Increase in water quality helps in maintaining a healthy aquatic ecosystem, whereas, Algal blooms causes the reduction in nutrient quality of the water which affects the biological life in water, aquatic organism consumed by humans may cause adverse health issues, nitrogen and phosphorus in aquatic ecosystem leads to eutrophication which leads to algal blooms and other adverse conditions and hence, reduction in marine life.