No. of questions - 20
Time - 10 min
Negative marking : -0.25 mark
1.
Which one of the following is a bioindicator of air pollution?
2.
BOD is maximum in the Ganga river between
3.
‘Green Muffler’ is related to
4.
The gas which leaked from Union Carbide factory, Bhopal was
5.
Which one of the following gases is responsible for causing acid rain in the atmosphere?
6.
A water body having high BOD indicates that its water is
7.
The water pollution in a river is determined by measuring the dissolved amount of
8.
Which of the following is not destroyed by bacteria?
9.
Which of the following takes maximum time to decay?
10.
Bhopal Gas Tragedy (leakage of methyl isocyanate ‘MIC’) accident happened on
11.
Acid rain is caused by
12.
Which one of the following is not related to air pollution?
13.
Which one of the following is an air pollutant gas and is released by burning fossil fuel?
14.
Biological Oxygen Demand (BOD) is an indication of pollution in
15.
Which one of the following is biodegradable?
16.
The problem of water pollution with Arsenic is maximum in
18.
Which of the following is not a water pollutant?
19.
Fly ash is a pollutive combustion product of burning
20.
Polythene bags cannot be destroyed because they are made of
