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 is not a water pollutant?
3.
BOD is maximum in the Ganga river between
4.
The gas which leaked from Union Carbide factory, Bhopal was
5.
‘Green Muffler’ is related to
6.
The problem of water pollution with Arsenic is maximum in
7.
Which one of the following is biodegradable?
8.
Fly ash is a pollutive combustion product of burning
9.
Which of the following is not destroyed by bacteria?
10.
The water pollution in a river is determined by measuring the dissolved amount of
11.
Polythene bags cannot be destroyed because they are made of
12.
Which one of the following is an air pollutant gas and is released by burning fossil fuel?
13.
Biological Oxygen Demand (BOD) is an indication of pollution in
14.
Bhopal Gas Tragedy (leakage of methyl isocyanate ‘MIC’) accident happened on
15.
Acid rain is caused by
16.
Which of the following takes maximum time to decay?
18.
Which one of the following is not related to air pollution?
19.
Which one of the following gases is responsible for causing acid rain in the atmosphere?
20.
A water body having high BOD indicates that its water is
