There is mass mortality of fishes in a pond. What may be the reasons ?

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Solution

The mass mortality of fishes may have occurred due to folllowing reasons,
(i) Thermal pollution
(ii) Addition of poisonous (mercury) compounds in water
(iii) Blockage of gills due to oil spills or any other pollutant.

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There is mass mortality of fishes in a pond. What may be the reasons?

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