Explain why fishes in some river, pond or along sea shore are sometimes found dead.
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Toxic chemicals present in waste material thrown from factories and industries into river water, on large scale, kill the fishes.
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Sometimes we find fishes in some water in ponds rivers and along the seas are dead this is because there occurs water pollution due to to release of toxic chemicals from industries and other sources.
Pollutants change the pH of the water and also temperature of the water.
This changes brings out effect to the life of fishes as they cannot sustain such conditions.
So fishes are found dead.
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