JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech II Year ENVIRONMENTAL STUDIES Previous Question Paper (April/May - 2018 - R15)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit.
PART-A
Define an ecosystem. List the types of ecosystem.
Answer
An ecosystem is a functional unit of nature where living organisms (biotic community) interact with their physical environment (abiotic factors) to exchange energy and nutrients. Ecosystems are broadly classified into terrestrial (e.g., forests, grasslands, deserts) and aquatic (e.g., freshwater, marine) ecosystems.
Write short notes about ecological pyramids and the components present in it.
Answer
An ecological pyramid is a graphical representation of the relationship between different trophic levels in an ecosystem. The components present in these pyramids include producers (autotrophs at the base), primary consumers (herbivores), secondary consumers (carnivores), and tertiary consumers (top predators). They represent parameters like number, biomass, or energy flow.
Suggest the naturally available alternate energy sources which are pollution free.
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Mention the reasons for over utilization and pollution of ground water.
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What are the reasons for genetic diversity?
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Write the differences between ex–situ and in–situ conservation methods.
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List the effects of ozone layer depletion on human health.
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Specify the sources and effects of oxygen depleting pollutants in waste water.
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Mention the objectives of green building.
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What are the main goals of the Environment (Protection) Act, 1986?
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PART-B
Describe the classification, structure and function of an ecosystem.
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Explain the importance and types of biogeochemical cycle in an ecosystem.
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Discuss the relationship between food chain and the flow of energy.
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What are the causes of bioaccumulation and biomagnifications process?
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Brief the manmade reasons for floods and droughts.
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Explain the environmental problems created by mineral mining operations.
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Discuss the technology used for the conversion of sun light directly into electrical energy.
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Explain the role of forest resources in watershed protection and atmospheric regulation.
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Describe the consumptive use value and productive use value of biodiversity.
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Write short notes about mega diversity nations and hotspot of biodiversity.
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Discuss the various threats to biodiversity due to habitat loss and poaching of wild life.
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What is species diversity? Give examples.
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Explain the effect of air pollution on living organisms and on plants.
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Discuss the hazards of excess use of fertilizers on soil ecosystem.
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Describe the objectives of Kyoto Protocol and Montreal Protocol.
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Explain the mechanism of activated sludge process for the secondary treatment of wastewater.
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Discuss the causes, effects and control measures of municipal solid waste.
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Explain the concept of life cycle assessment (LCA) as an environmental management tool.
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Discuss the approach towards low carbon life style at home.
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