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Biology
Water pollution
What is the adverse effect of an oil spill?
Biology
Water pollution
‘Water hyacinth’ which is a free floating weed and infests India’s waterways choking off plants, fish and animal growth is a native of:
A. Australia
B. France
C. South America
D. North America

Biology
Water pollution
Which among the following organisms is known as a polluted water indicator?
A Tubifex
B E.coli
C Chironomus larvae
D All of the above

Biology
Water pollution
Oil Slick causes mass scale death of fishes due to-
A. Clogging of gills
B. Non-availability of oxygen in water
C. Non-availability of food
D. Disruption of food chain
Biology
Water pollution
Why should oils and fats be not released in the drain? Explain.
Biology
Water pollution
The following is the statement about pollution, which type of pollution does this express?
Many times, vomiting and dysentery occurs after eating ‘panipuri’.
Biology
Water pollution
Disease aggravated by pollution ?
Biology
Water pollution
What is the impact of water pollution on aquatic life?
Biology
Water pollution
Is Florida water drinkable?
Biology
Water pollution
What initiative the government has taken to prevent water pollution in the year 1986?
Biology
Water pollution
Which of the following is present in activated sludge?
(a) Bacteria
(b) Yeast
(c) Protozoa
(d) All of the above

Biology
Water pollution
How can mining cause water pollution?
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