Science MCQ

Which is the easiest method to identify the polluted water?

What grows in excess when eutrophication of the water bodies take place?

What is the type of pollutants that are present in the industrial effluents that is released in the rivers and sea?

Which fertilizers when used in excessive amounts cause soil pollution that spreads to neighbouring water bodies and cause water pollution too?

Which of the following is seen in the polluted water body?
(1) flowers used in pooja
(2) fruits
(3) fishes
(4) aquatic insects
(5) plastic bags
(6) turtles
(7) thick growth of algae
(8) light blue colour of water
(9) cattle wading in water
(10) broken idols