[PPSC Deputy Director, 2020]

38. Some possible properties of modern insecticides are listed below. When these insecticides are used, which property helps to keep environmental pollution at the lowestn level ?

1. Accumulates in the bodies of Predators

2. Broken down by soil bacteria

3. Easily washed into lakes and rivers

4. Taken up by the plants roots

Correct Answer :

Broken down by soil bacteria