No. of questions - 20
Time - 10 min
Negative marking : -0.25 mark
1.
Which of the following is not destroyed by bacteria?
2.
Which one of the following is an air pollutant gas and is released by burning fossil fuel?
3.
Bhopal Gas Tragedy (leakage of methyl isocyanate ‘MIC’) accident happened on
4.
The water pollution in a river is determined by measuring the dissolved amount of
5.
Which of the following takes maximum time to decay?
6.
Acid rain is caused by
7.
Biological Oxygen Demand (BOD) is an indication of pollution in
8.
The problem of water pollution with Arsenic is maximum in
9.
Which one of the following gases is responsible for causing acid rain in the atmosphere?
10.
Fly ash is a pollutive combustion product of burning
12.
Polythene bags cannot be destroyed because they are made of
13.
Which one of the following is a bioindicator of air pollution?
14.
BOD is maximum in the Ganga river between
15.
Which one of the following is not related to air pollution?
16.
‘Green Muffler’ is related to
17.
The gas which leaked from Union Carbide factory, Bhopal was
18.
Which one of the following is biodegradable?
19.
Which of the following is not a water pollutant?
20.
A water body having high BOD indicates that its water is
