No. of questions - 20
Time - 10 min
Negative marking : -0.25 mark
1.
The water pollution in a river is determined by measuring the dissolved amount of
2.
Which one of the following is an air pollutant gas and is released by burning fossil fuel?
3.
The problem of water pollution with Arsenic is maximum in
4.
Which one of the following is not related to air pollution?
5.
Which of the following takes maximum time to decay?
6.
Polythene bags cannot be destroyed because they are made of
7.
Which one of the following is biodegradable?
8.
Acid rain is caused by
9.
Fly ash is a pollutive combustion product of burning
10.
Which one of the following is a bioindicator of air pollution?
11.
The gas which leaked from Union Carbide factory, Bhopal was
12.
Which of the following is not destroyed by bacteria?
14.
Biological Oxygen Demand (BOD) is an indication of pollution in
15.
‘Green Muffler’ is related to
16.
Which one of the following gases is responsible for causing acid rain in the atmosphere?
17.
A water body having high BOD indicates that its water is
18.
Bhopal Gas Tragedy (leakage of methyl isocyanate ‘MIC’) accident happened on
19.
Which of the following is not a water pollutant?
20.
BOD is maximum in the Ganga river between
