Question

In which tropic level chemicals like DDT are accumulated in highest concentration (options -T1, T2 ,T3, T4 )

Answer 1

Trophic level 4. The phenomenon is called biomagnification. Toxic concentration increases at successive trophic levels

Answer 2

In the question, the options T1, T2, T3 and T4 indicate the various trophic levels.

When we move up the trophic level, concentration of chemicals increases.

Since T4 is the highest trophic level, it has the highest concentration of DDT.

Thus the correct answer to the question asked is T4.