PLEASE HELP ME IN THIS QUESTION

Insecticides were sprayed on the grains to kill insects that way the crops. Unfortunately, the toxins in the insecticides never leave the food chain and can have serious consequences for those organism at the top of the food chain.
What is this an example of? ​
Explain how the insecticides could kill the owls but not the grasshopper or mice?

PLEASE HELP ME IN THIS QUESTIONInsecticides were sprayed on the grains to kill insects that way the crops Unfortunately the toxins in the insecticides never lea class=