Environmental Studies Semester III
40 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is one of the primary outcomes students should achieve related to ecosystems?

  • Analyze the effectiveness of current environmental policies
  • Identify methods to increase non-renewable resources
  • Evaluate global economic growth in relation to the environment
  • Classify the importance of the ecosystem and its protection (correct)
  • Which course outcome addresses sustainable development?

  • CO-1
  • CO-3
  • CO-4
  • CO-2 (correct)
  • What aspect of pollution is highlighted in the course outcomes?

  • Promoting knowledge on chemical manufacturing
  • Discussing the harmful effects of various pollution types (correct)
  • Innovation methods to increase pollution
  • Encouraging the development of industrial waste
  • Which of the following is NOT a focus of CO-4?

    <p>Understanding the roles of renewable energy</p> Signup and view all the answers

    What pedagogical methods are included in the course structure?

    <p>Classroom lectures, tutorials, and group discussions</p> Signup and view all the answers

    How many hours of teaching are designated for this course?

    <p>45 hours</p> Signup and view all the answers

    What is the primary focus of CO-3 in this course?

    <p>Discussing harmful effects of pollution</p> Signup and view all the answers

    What is the significance of reference books mentioned in the course material?

    <p>They serve as additional resources for students</p> Signup and view all the answers

    What term is used to describe the natural environment in which an organism lives?

    <p>Habitat</p> Signup and view all the answers

    Which of the following is NOT a component of the hydrosphere?

    <p>Mountains</p> Signup and view all the answers

    What new organization was established following the Earth Summit of 1992?

    <p>UN Commission on Sustainable Development</p> Signup and view all the answers

    Which of the following best describes an ecosystem?

    <p>A group of organisms and their environment functioning together</p> Signup and view all the answers

    Which of the following is a focus of ecological succession?

    <p>Alteration of flora and fauna over time</p> Signup and view all the answers

    Which type of ecosystem is characterized by high biodiversity and different layers of vegetation?

    <p>Forest Ecosystem</p> Signup and view all the answers

    What is the 'biosphere' primarily concerned with?

    <p>The total life-supporting regions of Earth</p> Signup and view all the answers

    What concept explains how nature functions in relation to its various components?

    <p>Ecosystem Functioning</p> Signup and view all the answers

    What is a direct consequence of cutting down trees on hills?

    <p>Reduced ground water percolation</p> Signup and view all the answers

    How does the loss of biodiversity affect humanity?

    <p>It reduces the availability of medicinal plants</p> Signup and view all the answers

    Which local environmental issue is exemplified by the situation in Hinkley, California?

    <p>Ground water contamination from hexavalent chromium</p> Signup and view all the answers

    What describes nutrients stored in a reservoir?

    <p>They are inaccessible to organisms in the ecosystem.</p> Signup and view all the answers

    What global problem is caused by dwindling energy resources?

    <p>Dependence on nuclear fuels</p> Signup and view all the answers

    Which of the following is an example of an exchange pool?

    <p>Dissolved phosphorus from erosion</p> Signup and view all the answers

    What role do decomposers play in the nutrient cycle?

    <p>They release nutrients back into the exchange pool.</p> Signup and view all the answers

    What effect do greenhouse gases have on the environment?

    <p>They increase overall temperatures</p> Signup and view all the answers

    What occurs as a result of soil erosion linked to deforestation?

    <p>Siltation of rivers and harbors</p> Signup and view all the answers

    What is the process of ecological succession?

    <p>The change in species structure over time.</p> Signup and view all the answers

    Which factor can trigger ecological succession?

    <p>Changes in the surrounding environment.</p> Signup and view all the answers

    What is a local environmental issue with global implications?

    <p>Ground water pollution</p> Signup and view all the answers

    How are nutrients passed from one trophic level to another?

    <p>Incorporated into the biomass of each trophic level.</p> Signup and view all the answers

    Which of the following is NOT a consequence of environmental degradation caused by human activities?

    <p>Restoration of natural habitats</p> Signup and view all the answers

    What happens to nutrients tied up in biomass during decomposition?

    <p>They are released back into the exchange pool.</p> Signup and view all the answers

    Which of the following is the result of carbonification of dead organic materials?

    <p>Formation of reservoir forms like natural gas.</p> Signup and view all the answers

    What is the primary factor that leads to the increase in root floating vegetation in a pond?

    <p>Increased organic matter decomposition</p> Signup and view all the answers

    Which of the following species is an example of floating vegetation in a pond ecosystem?

    <p>Nelumbo nucifera</p> Signup and view all the answers

    At which stage does the pond ecosystem start to evolve into a marshy environment?

    <p>Reed swamp stage</p> Signup and view all the answers

    In which stage do mesic communities like grasses start to establish themselves?

    <p>Sedge meadow stage</p> Signup and view all the answers

    What significant change occurs as the pond evolves into a wood land stage?

    <p>The emergence of land plants and trees</p> Signup and view all the answers

    Which of the following best defines the term 'Xerosere'?

    <p>Succession beginning on dry sand or rocks</p> Signup and view all the answers

    What role do decomposing free-floating plants play in the pond ecosystem?

    <p>They contribute to nutrient build-up in the ecosystem</p> Signup and view all the answers

    What animal species is least likely to inhabit the submerged stage of a pond?

    <p>Deer</p> Signup and view all the answers

    Study Notes

    Course Overview

    • Course: Environmental Studies
    • Program: Bachelor of Commerce (B.Com/BMS)
    • Code: 22ENVIOVE2
    • Credits: 3
    • Teaching Hours: 45 hours total, 3 hours per week
    • Methods: Classroom lectures, tutorials, group discussions, seminars, case studies, fieldwork

    Course Outcomes

    • Importance of protecting ecosystems like forests, rivers, and lakes
    • Sustainable development through reduction of non-renewable resources and enhancement of renewable energy resources
    • Understanding pollution's harmful effects and strategies for reduction
    • Awareness of global warming, ozone layer depletion, and relevant environmental laws

    Environmental Issues

    • Deforestation impacts: loss of biodiversity, soil erosion, siltation of rivers leading to floods, and decreased groundwater levels
    • Local environmental problems can escalate to global issues, e.g., greenhouse gas emissions increasing overall temperature and CFCs depleting the ozone layer
    • Biodiversity loss threatens potential medicinal plants and human health
    • Local issues such as groundwater pollution from industrial activities can have severe health impacts, as illustrated by the hexavalent chromium incident in Hinkley, California

    Ecosystem Concepts

    • Nutrient reservoirs: storehouses for nutrients like carbon (e.g., limestone, fossil fuels), while exchange pools provide nutrients in accessible forms for primary producers
    • Decomposers play a vital role by breaking down dead organic material, releasing nutrients back into the ecosystem's exchange pool

    Ecological Succession

    • Defined as the gradual change in species composition in an ecological community over time
    • Triggered by environmental changes, leading to shifts in species abundance and introduction of new species
    • Different stages include:
      • Submerged stage: inhabited by aquatic insects and crustaceans
      • Rooted floating stage: characterized by decomposing plants releasing nutrients
      • Reed swamp stage: increased sedimentation leads to swampy conditions
      • Sedge meadow stage: formation of marshland with grass and sedge vegetation
      • Woodland stage: drying marshes support shrubs and trees
      • Forest stage: varies based on geography, promoting different types of forests

    Key Terminology

    • Reservoir: Nutrient storage not immediately available to organisms
    • Exchange Pool: Nutrient sources accessible to primary producers
    • Decomposers: Organisms that break down dead matter, recycling nutrients
    • Ecological Succession: The predictable process of species change in an ecosystem over time

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Description

    Test your knowledge with this quiz on Environmental Studies for Semester III. This quiz covers key concepts and materials as outlined in the AECC curriculum for the 2023-2026 batch at JAIN University. Prepare effectively and assess your understanding of this important subject.

    Use Quizgecko on...
    Browser
    Browser