M.Sc. (Semester III) (CBCS) Examination, 2017
ENVIRONMENTAL SCIENCE
Environmental Pollution
Day Date: Tuesday, 18-04-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
N.B. Q.1 is compulsory.
Attempt any two questions from Q. 3 and 4.
Attempt any two questions from Q. 6 and 7.
Figures to the right indicate full marks.
Draw neat and labeled diagram wherever necessary.
Q.1 Choose correct alternatives: 10
Main Environmental impact of deforestation is/are
Atmospheric pollution Soil erosion
Landslides All of these
Vegetation of a particular locality is controlled by
Man Climate
Altitude Edaphic
UV radiation is necessary for
Promoting the synthesis of vitamin D in humans
Promoting CFCs production
Both a and b
None of the above
The photochemical smog is
An Ozone layer in the wrong place
A source nitric oxide
A initiator of volatile organic compounds
All of the above
The capacity of the organic and biological matter in a sample of
natural water to consume oxygen and this process catalyzed by
bacteria is called
Chemical Oxygen Demand
Biological Oxygen Demand
Bivariate Oxygen Demand
Complete Oxygen Demand
The earlier impact of noise
Constriction of blood vessels Digestive Spasm
Anxiety and stress reaction Increased heart beat
Page 1 of 3
SLR-RJ- 458
the agency that has laid down the standards for the
control of pollution of air, water and noise etc.
Central pollution control tribunal
Central pollution control agency
Ministry of home affairs
Central pollution control board
Decreasing Fish population from water bodies indicates excess of
____pollutant in water.
Zn Hg Fluoride P
Good urban land management practice consists in:
Leaving large land depressions unfilled
Creation of gardens and parks
Growing broad green belts
All of these
10) The biological treatment of hazardous waste includes
Sludge process and aerated lagoons
Trickling filters and stabilization ponds
Anaerobic digestion
All of the above
11) To determine moisture contents of solid waste;
It is dried to obtain a constant mass
Weighing the entire sample to obtain the wet weight
Both of the above
None of the above
12) Cyclone collector is used to minimizea)
Radioactive pollution Air pollution
Noise pollution Water pollution
13) Organic matter is an very essential part soils because:
It increase greenhouse gas
It is source of water
Earthworms eat up humus
It stabilizes and holds soil particles together, thus reducing the
hazard of erosion
14) Toxic risk assessment includesa)
Toxic identification and exposure assessment
Dose response assessment
Risk characterization
All of the above
Page 2 of 3
SLR-RJ- 458
Q.2 What is solid waste? Give brief accounts of classification of waste. 14
Q.3 Explain soil pollution and physicochemical and biological methods of
soil reclamation.
14
Q.4 What is air pollution? Discuss natural and anthropogenic sources of
air pollution.
Q.5 Explain in brief: 14
Types of radiation pollution
Sources of solid waste
Q.6 Write short note on: 14
Sources of oil pollution
Thermal pollution
Q.7 Discuss on: 14
Religious festivals and noise
Acid rain