No. of questions - 20
Time - 10 min
Negative marking : -0.25 mark
1.
Polythene bags cannot be destroyed because they are made of
2.
Biological Oxygen Demand (BOD) is an indication of pollution in
4.
Which of the following takes maximum time to decay?
5.
Fly ash is a pollutive combustion product of burning
6.
Bhopal Gas Tragedy (leakage of methyl isocyanate ‘MIC’) accident happened on
7.
BOD is maximum in the Ganga river between
8.
Which one of the following is biodegradable?
9.
Which one of the following is a bioindicator of air pollution?
10.
Which one of the following is an air pollutant gas and is released by burning fossil fuel?
11.
Which of the following is not destroyed by bacteria?
12.
Which of the following is not a water pollutant?
13.
The problem of water pollution with Arsenic is maximum in
14.
Which one of the following gases is responsible for causing acid rain in the atmosphere?
15.
The gas which leaked from Union Carbide factory, Bhopal was
16.
A water body having high BOD indicates that its water is
17.
The water pollution in a river is determined by measuring the dissolved amount of
18.
Acid rain is caused by
19.
Which one of the following is not related to air pollution?
20.
‘Green Muffler’ is related to
