JNTU
JNTU B.Tech II ENVIRONMENTAL STUDIES Previous Question Paper (April/May - 2023 - R13)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Define ecosystem.
Answer
An ecosystem is a functional unit of nature where living organisms (biotic community) interact with each other and with their non-living (abiotic) physical environment, resulting in a flow of energy and cycling of nutrients.
What are the structural features of ecosystem?
Answer
The structural features of an ecosystem are divided into two components:
- Abiotic components: Inorganic and organic substances, and climatic factors like temperature, light, and humidity.
- Biotic components: The living community, categorized into producers (autotrophs), consumers (heterotrophs), and decomposers (saprotrophs).
Define soil erosion.
Answer
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Define and classify aquifers.
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Write about ecosystem diversity.
Answer
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What are the biodiversity hotspots present in India?
Answer
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Define noise pollution.
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Write about greenhouse effect.
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Define EIA.
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Write about ecological footprint.
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Part B
Describe energy flow models with neat sketch.
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Define and classify food chains. And explain about ecological pyramids.
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How the big dams are benefit? Also explain its impacts on environment and people.
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Classify mining and explain the impacts related to mining activities.
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What are the levels of biodiversity and explain the threats to biodiversity?
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How can we conserve biodiversity?
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Differentiate primary and secondary air pollutants and explain the national ambient air quality standards.
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Explain any three air pollution control devices with neat sketch.
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Explain any two environmental protection laws.
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Write about the methodologies of EIA.
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