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.
Which of the following takes maximum time to decay?
3.
Bhopal Gas Tragedy (leakage of methyl isocyanate ‘MIC’) accident happened on
4.
Biological Oxygen Demand (BOD) is an indication of pollution in
5.
Acid rain is caused by
6.
BOD is maximum in the Ganga river between
7.
Which one of the following gases is responsible for causing acid rain in the atmosphere?
8.
The water pollution in a river is determined by measuring the dissolved amount of
9.
Which of the following is not a water pollutant?
10.
Which one of the following is biodegradable?
11.
Which one of the following is not related to air pollution?
12.
Fly ash is a pollutive combustion product of burning
13.
A water body having high BOD indicates that its water is
14.
The problem of water pollution with Arsenic is maximum in
15.
Which one of the following is an air pollutant gas and is released by burning fossil fuel?
16.
‘Green Muffler’ is related to
17.
Polythene bags cannot be destroyed because they are made of
19.
The gas which leaked from Union Carbide factory, Bhopal was
20.
Which of the following is not destroyed by bacteria?
