Class 11 Chemistry Environmental Chemistry Environmental Study

Difficult

Sewage containing organic waste should not be disposed of in water bodies because it causes major water pollution. Fishes in such polluted water die because of:

A
Large number of mosquitoes
B
Increase in the amount of dissolved oxygen
C
Decrease in the amount of dissolved oxygen in water
D
Clogging of gills by mud

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Environmental Chemistry

Subtopic

Environmental Study

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