IGNOU BEVAE-181 BAG Solved Assignment 2023-24 session
Please read the section on assignments in the Programme
Guide that we sent you after your enrolment. The total marks of all the parts
are 100, of which 35% are needed to pass it. ignou bag 1st year solved
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of 30 per cent, as you are aware, has been earmarked for continuous evaluation,
which would consist of one tutor-marked assignment for this course. The
assignment is in this booklet, and it consists of two parts, Part A and B.
PART-A
1. Why ecological significance of forests is more important in present-day context? Explain.
2. Answer the following questions in about 125 words each.
a) Explain the characteristics of Western Ghats for inclusion as Biodiversity hotspots.
b) Why hydropower is regarded as the
best source of energy? Explain it in detail.
c)
The importance of Biomass has been
increasing day by day in our surroundings among renewable resources.
Explain it with suitable examples.
d) How does air pollution affect the atmospheric processes?
e) What is Disposal
of waste? Why segregation of waste
is needed?
3. Explain
the human-environment relationship by taking examples of biotic and abiotic components?
4. “As
humans civilisation progressed, man started altering the environment in the
pursuit of creating an economic,
social and cultural environment of his own choice. This slowly resulted in the depletion of natural
resources and degradation of environment.” Explain it in context of
national legislations of water acts?
5. “Biosphere
reserves are internationally recognised areas established to promote and demonstrate a balanced relationship
between Humans and the Biosphere.” Elaborate this statement in the
context of conservation of nature?
PART-B
IGNOU BEVAE-181 BAG Solved Assignment 2023-24 session
6. Explain the following terms in about 60
words each:
(a) Seed Bank
(b) Incineration
(c) Biological Oxygen
Demand
(d) Public Health
7. Answer the following questions in about 150 words each.
(a) What is lentic
and lotic ecosystem? Explain these
two with suitable examples.
(b) What is ecological
succession? Explain the types of succession with suitable diagrams.
(c) Explain the biocentrism and ecocentrism in context of human’s attitude
towards nature?
(d) Define natural
calamities and its types with suitable
examples.
8. Explain the causes of ozone depletion? How do ultraviolet rays affects human health, animals, plants, micro-organisms, water and air quality.
9.
“Education
for environmental awareness is essential for the younger
generation as well as for the older generation.” Explain the statement with suitable
examples.
10. “Water
Harvesting is one of the effective measures to combat drought.” Explain this statement with suitable arguments.
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IGNOU BEVAE-181 BAG Solved Assignment 2023-24 session
IGNOU SOLVED ASSIGNMENTS July-2023-24
PART-A
1. “Sustainable development is an ideal goal towards which all human societies
need to be moving” Justify the statement in about 250 words
2. Differentiate between the following terms by giving suitable examples
in about 125 words each:
(a)
Genetic and species diversity
(b)
Direct and indirect use value of biodiversity
3.
Answer the following questions in about 150 words each.
(a) What is biodiversity hotspot? Why is India considered as a mega biodiversity hotspot?
(b) Describe the life forms of aquatic ecosystem
found in different
zones with suitable
examples and diagrams.
(c) Differentiate between the surface and ground water. Describe the factors responsible for degradation of water.
(d)
Write a short note on nitrogen cycle with the help of a diagram.
4. Why is there a need for
participatory forest management? How does Forest Right Act, 2006 helps tribal and forest dwellers?
Explain with suitable
examples in about 200 words.
5. Critically evaluate non-polluting energy systems in India. Elucidate
your answer with suitable examples in about 200 words.
PART-B
IGNOU BEVAE-181 BAG Solved Assignment 2023-24 session
6.
Explain the following terms in about 60 words each:
(a)
Environmental Justice
(b) Agenda 21
(c) Greenhouse Effect
(d)
Climate change
7.
Answer the following questions in about 150 words each.
(a)
Explain any four impacts of improper
waste disposal with suitable examples.
(b)
What is Ozone Layer Depletion? Describe its effects.
(c) Describe the role of Central Pollution Control Board (CPCB) as an institution for monitoring the pollution levels
of environment.
(d) How do collective
actions help in addressing environmental issues and concerns?
Explain.
8. “Protected areas play a very important role in in-situ conservation of species.” Elucidate
the
statement with respect
to present day context in about 200 words.
9. ‘Polluted water is a threat to our health
and survival of life forms”
Explain it with respect to different agents
of water pollutants in about 200 words.
10. How do natural disasters as floods and cyclones adversely
affect the lives and properties? Explain your answer with suitable examples
in about 250 words.
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