Answer:
Water pollution is very harmful to aquatic animals as well as the food chain which is indirectly attached to it.
It can impact the food chain of the organism and later on the availability of the food supply.
Death of aquatic (water) animals: The main problem with water pollution is it kills or affect the aquatic animals and indirectly later it affects the food chain.
Water Pollution affects the natural food chain and Pollutants such as cadmium and lead are eaten by tiny organisms.
then these tiny organisms are eaten by fish and other aquatic animals and the food chain continues to be affected at all higher levels.