A) fluctuation of temperature
B) unusual growth of aquatic vegetations
C) enrichment of nutrients
D) abundance of microorganisms
Correct Answer: C
Solution :
Eutrophication is the natural aging of lakes whose process starts due discharge of pollutants. Normally in young lake, water is clear and support ealthy healthy life, with time due to the enrichment of nutrients such as nitrates and phosphates mainly the industry, sewage, agricultural waste, also waste from home, etc., enters the lakes hinders the aquatic system. This occurs because of overstimulation of growth of algae or algal bloom.
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