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Fishes die in water bodies polluted by s...

Fishes die in water bodies polluted by sewage due to :

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Presence of excessive algae growth shows that water contains a lot of phosphate due to inflow of fertilizers, etc. from the surroundings.
The decomposition of algae growth produces bad smell and unattractive appearance making it unfit for recreational use the swimming, boating etc. Further, decrease in dissolved oxygen may be harmful for aquatic species like fishes etc.
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  10. BOD of waste water is estimated by measuring the amount of

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  11. Fishes die in water bodies polluted by sewage due to :

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  12. A factory was started near a village. Suddenly villagers started feeli...

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  14. From where does ozone come in the photochemical smog ?

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  15. What is ozone and how does it affect any ecosystem?

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  16. Ozone is a gas hevier than air. Wy does ozone layer not settle down ne...

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