Question

in a village of south Indian people started cultivating crops all around a lake the added fertilizer to their field in order to win has the yield soon after it was discovered that the water body has completely covered with green floating plants and the aquatic animals started dying in large numbers analyse the situation and state reasons for excessive growth of plants and death of aquatic animals in lake

Answer 1

Answer:

Bio Magnification is the answer

Explanation:

when fertilzers are added they reach the lake by moving from one source to another and increase in these fertilizers cause the death in aquatic plants and animals

Answer 2

Answer:biological magnification

Explanation:as these chemicals are not degredable and get accumulated at each trophic level.As aquatic animals aquire the next level of the food chain,the maximum level of chemicals get accumulated in their bodies and they eventually die.