M.Sc. (Semester III) (CBCS) Examination Oct/Nov-2017
Environmental Science
ENVIRONMENTAL POLLUTION
Day Date: Thursday, 16-11-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
Instructions: Answer any Five Question.
All Questions carry equal marks.
Question No. 1 is Compulsory.
Attempt any two from Q.No.2, 3 and 4.
Attempt any two from Q.No.5, 6 and 7.
Draw neat labeled diagrams wherever necessary.
Q.1 Select the answer among the following. 14
Decreasing Fish population from water bodies indicates excess of
Pollutant in water.
Zn Hg
Fluoride P
Most important soil pollutant is:
Plastic Detergents
Both A B Glass Junk
Soil are impoverished over extensive cultivated areas mainly because:
Droughts and floods affect cultivation
Cultivation has been practiced for more than 4000 years
Fertilizers are not extensively used
Soil erosion has removed top soil
not cause any atmospheric pollution?
Hydrogen Carbon dioxide
Sulphur dioxide Any of these
is ozone destroying constituent
Chlorofluorocarbons CH4
SO2 NO2
UV radiation is necessary for
Promoting the synthesis of vitamin D in human
Promoting CFCs production
Both A and B
None 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 calleda)
Chemical oxygen demand
Biological oxygen demand
Bivariate oxygen demand
Complete oxygen demand
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SLR-MI-404
Water cycle is combination of
Ground water atmospheric cycles
Surface water and atmospheric cycles
Global and local cycles
Oceanic and fresh water cycles
Water cycle involves
Forest trees
Microorganism
Algae
Evaporation of water from water bodies
10) Weathering lead to formation of
Sedimentary soil Immature soil
Secondary Soil All of these
11) The major organic compound of soil is
Humus Sludge
Subsoil Matrix
12) "Earth provides enough to satisfy every man's need, but not every man's
greed." was said by
Mahatma Gandhi E. P. Odum
Rachel Carson Sundarlal Bahuguna
13) SO2, CO are
Primary pollutant Secondary pollutant
Both of these None of these
14) The major source of harmful radiations in the house
Tube light Colour TV
Oven Heater
Q.2 Write brief account of effects of Noise pollution and control of Noise at
source?
14
Q.3 What is thermal pollution? Explain its effects on Environment? 14
Q.4 Discuss mining and soil pollution? 14
Q.5 Discuss in short: 14
Natural and manmade pollution of radiation pollution.
Photochemical smog.
Q.6 Write short note on: 14
Measurement of noise.
Consequences of water pollution.
Q.7 Explain in brief: 14
Types of radiation pollution.
Sources of solid waste.