Consider the following pesticides:
1. DDT
2. Aldrin
3. Endosulfan
4. Pyrethrin
Which among the above have tendency to remain intact in environment and to accumulate in fatty tissue?

Answer: [C] Only 1, 2 & 3

DDT and other chlorinated pesticides such as aldrin, endrin, lindane and endosulfan are persistent organic pollutants (POPs), which remain intact and have a tendency to accumulate in fatty tissue. Pyrethroids (such as Pyrethrin) and Chlorophenols are Non-persistent pesticides.

This question is a part of GKToday's Integrated IAS General Studies Module