EVST/IV/ALL Student's Copy
2 0 1 8
Pre-CBCS
4th Semester
ENVIRONMENTAL STUDIES
Paper EVS-I
Full Marks 75
Time 3 hours
PART A—OBJECTIVE
Marks 25
The figures in the margin indicate full marks for the questions
SECTION—A
Marks 10
Tick the correct answer in the brackets provided 1×10=10
1. The World Environment Day is observed on
5th May
5th June
15th June
15th July
2. Forests and wildlife are
renewable resources
non-renewable resources
inexhaustible resources
None of the above
/388 1 Contd.
3. Ecosystem involves interaction between
plants and animals
all living and non-living organisms
plants and non-living organisms
None of the above
4. The term 'ecosystem' was coined and introduced by
E. P. Odum
R. Mishra
A. G. Tansley
Charles Darwin
5. The comparison of diversity between two ecosystems is called
alpha diversity
beta diversity
gamma diversity
ecosystem diversity
6. The species which are confined only to a particular geographical area
called
endangered species
endemic species
exotic species
None of the above
7. Which of the following is not a 'greenhouse gas'
Oxygen
Carbon dioxide
Chlorofluorocarbon
Methane
8. Lichens are an indicator of
noise pollution
water pollution
soil pollution
air pollution
EVST/IV/ALL/388 2 Contd.
9. "Meeting the needs of present without compromising the ability of future
generation to meet their own needs" is given by
Norman Myer
Amrita Devi
Brundtland
UNCED
10. Which of the following NGOs is associated with 'Chipko Movement'
Dasholi Gram Swarajya Mandal
Narmada Bachao Andolan
Centre for Science and Environment
Kalpavriksh
SECTION—B
Marks 15
Write notes on the following 3×5=15
1. Importance of environmental studies
2. Energy flow through ecosystem
3. Man-wildlife conflicts
4. Soil pollution
5. Resettlement and rehabilitation of people
PART B—DESCRIPTIVE
Marks 50
The figures in the margin indicate full marks for the questions
UNIT—I
1. Define food resources. Describe the effects of modern agriculture. 2+8=10
OR
Define energy sources. Describe in detail the renewable and non-renewable
energy sources. 2+8=10
EVST/IV/ALL/388 3 Contd.
unit—II
2. What is ecosystem? Describe food chain, food web and ecological pyramids.
2+8=10
OR
Briefly describe the structure and functions of an ecosystem. 5+5=10
UNIT—III
3. What do you mean by biodiversity? Discuss the factors affecting
biodiversity. 2+8=10
OR
Write short notes on any two of the following 5×2=10
Classification of bio-geographical regions of India
Concept and criteria of biodiversity hot spots
In situ conservations of biodiversity
Causes of loss of biodiversity
UNIT—IV
4. Define environmental pollution. What are the causes of air pollution? How
to prevent air pollution?
OR
Write short notes on any two of the following 5×2=10
Causes of water pollution
Solid waste management
Cyclones
Landslides
UNIT—V
5. Explain the concept of sustainable development. Briefly describe the
carrying capacity of the environment. 4+6=10
OR
Write short notes on any two of the following 5×2=10
Chipko Movement
Population growth
Watershed management