MCQ

MCQ 11 Mark

Which is the easiest method to identify the polluted water?

A
To taste the water
B
To check the depth of water
✓
To observe colour and odour of the water
D
To swim in the water

Answer

Correct option: C.

To observe colour and odour of the water

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MCQ 21 Mark

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

A
Plants
✓
Algae
C
Fishes
D
Fungi

Answer

Correct option: B.

Algae

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MCQ 31 Mark

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

✓
Inorganic
B
Organic
C
Biological
D
Biomedical

Answer

Correct option: A.

Inorganic

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MCQ 41 Mark

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

✓
Chemical
B
Organic
C
Artificial
D
Compost

Answer

Correct option: A.

Chemical

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MCQ 51 Mark

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

A
(1) (3) (5) (6) (9) (10)
✓
(1) (2) (5) (7) (9) (10)
C
(1) (3) (6) (8) (9) (10)
D
(1) (2) (4) (7) (8) (9)

Answer

Correct option: B.

(1) (2) (5) (7) (9) (10)

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