A lake with an inflow of domestic sewage rich in organic waste may result in

Options

A. Drying of the lake very soon due to algal bloom
B. An increased production of fish due to a lot of nutrients
C. Death of fish due to lack of oxygen
D. The increased population of aquatic web organism

Answer

C

Explanation

Fish kills are most frequently caused by pollution from agricultural runoff or biotoxins. Ecological hypoxia (oxygen depletion) is one of the most common natural causes of fish kills.