Which of the following is responsible for the increase in soil salinity?

If the concentration of $DDT$ in water is $0.003\, ppm$,what could be its concentration in small fish due to biomagnification (in $, ppm$)?

Which chemical compound caused the death of thousands of people in the Bhopal gas tragedy?

Which among the following is likely to have the highest levels of $D.D.T.$ depositions in its body?

Which of the following is a biodegradable pollutant?

Excessive inhalation of manganese causes: