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Consider that there is a mass mortality of Ashes in a pond. Guess, what may be the reason for that.

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Consider that there is a mass mortality of Ashes in a pond. Guess, what may be the reason for that.

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  • Addition of hot water to the fish tank may leads to their death. 
  • Addition of poisonous mercury compounds in water may leads to their death. 
  • Blockage of gills of fishes with any pollutant may be .a cause for their mass death.
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