Question

If the conc. Of DDT is 0.02 in water of a lake , what would be its likely conc. In fish in the food chain Plankton> Fish> kingfishers

Answer 1

If the conc. Of DDT is 0.02 in water, it will affect by its concentration to the organisms which are at highest level or toppest position in the food chain.But here fish will be affected as follows-

Planktons(0.02)----> Fish(0.1)-----> Kingfishers(0.5).

Henceforth it will affect the fish by 0.1 ppm conc. of DDT.

I Hope it helped.