The correct options are
A Agrochemicals
B Fertilizers
C Effluents
D Sewage
∙ In the recent years, the Kolleru lake has faced a great threat due to the industrial settlements, expanding agriculture and the quantity of pollutants released into the lake. This has drastically decreased the water and land area of the lake.
∙ The major sources of pollution are agricultural runoff containing residues of several agrochemicals, fertilizers, fish tank discharges industrial effluents containing chemical residues and different types of organic substances and domestic sewage.