M.Sc. (Semester III) (CBCS) Examination Mar/Apr-2018
Environmental Science
ENVIRONMENTAL POLLUTION
Time: 2½ Hours
Max Marks: 70
Instructions: Attempt any five questions. All Questions carry equal marks. Question no.1 is compulsory. Attempt any two questions from Q. No. 3 and 4 Attempt any two questions from Q. No. 6 and 7.
Q.1
Select the answer among the following.
14
Ozone hole Formation is maximum
Africa
Antarctica
Europe
India
Which are the reliable indicators of air pollutants (SO2 and NOx gases)?
Ferns and Cycas
Green algae and Aquatic liverworts
Lichens and Mosses
Neem tree and Eichornia
Noise is measured in
Hertz
Decibel
Joule
Sound
Background noise in the ambient environment is represented by
L10
L50
L90
Ldn
Atomic absorption spectroscopy is used to detect
Heavy metals
Particle size
Dissolved gases
Dissolved organic compounds
Minamata disease causes due to the over exposure of
Inorganic mercury
Phenyl mercury
Compound mercury
Methyl mercury
The people working in are more susceptible to Black lung disease.
Organic solvent industry
Coal mine
Electroplating industry
Paint industry
The maximum permissible limit of Nitrate in drinking water set by BIS is
65 mg/l
45 mg/l
55 mg/l
50 mg/l
Maximum moisture content required in composting is
65%
50%
40%
30%
10) The ionizing radiation mainly affects on
Cell membrane
DNA
Mitochondria
Ribosome
11) The radioactive isotopes are formed by nuclear fission.
Cr51, Cu64
Zr95, Mn54
Sr90 I131
All of the above
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SLR-UI-367
12) Ocean can provide an abundant supply of as nuclear fuel.
Thorium
Deuterium
Tritium
Plutonium
13) 'Love canal' dump site is related to the waste of
Chemical waste
Municipal waste
Nuclear waste
Hospital waste
14) is commonly released from landfills.
CO
CH4
H2S
Co2
Q.2
What are the air pollutants? Write a note on its sources and effects.
14
Q.3
Write detailed account on Noise pollution including sources and effects.
14
Q.4
Discuss the Solid waste pollution problems and remedial measures with suitable case study.
14
Q.5
Write a short note on the following:
14

Physicochemical parameters for water quality assessment and its significance.

Soil pollution from mining activities.
Q.6
Write a brief with suitable illustration on the following:
14

Solid Waste classification

Nuclear waste and its impacts
Q.7
Write an account on the following:
14

Elaborate the Eutrophication process and its problem in India.

Marine pollution and its impact on marine life.