BGEC 113: Man and the Environment (I) Quiz
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Questions and Answers

What is environmental pollution?

  • The degradation of natural resources
  • The increase in global population
  • The introduction of undesirable substances into the environment (correct)
  • The extraction of resources at a faster rate than they are replaced

    • What is the main difference between pollution and degradation?

  • Pollution involves the introduction of substances, while degradation involves the extraction of resources (correct)
  • Pollution is reversible, while degradation is irreversible
  • Pollution is local, while degradation is global
  • Pollution is natural, while degradation is anthropogenic

    • What is a major cause of environmental degradation?

  • Climate change
  • Natural disasters
  • Deforestation
  • Overpopulation (correct)

    • What is the outcome of excessive pollution?

    <p>Environmental degradation</p> Signup and view all the answers

    What is the result of extracting resources at a faster rate than they are replaced?

    <p>Environmental degradation</p> Signup and view all the answers

    What is the impact of man's activity on the environment?

    <p>Pollution and degradation</p> Signup and view all the answers

    What is the primary focus of the Service Excellence Week 4 lecture on Man and the Environment?

    <p>Environmental pollution and degradation</p> Signup and view all the answers

    What is the definition of environmental degradation?

    <p>The gradual deterioration of the natural environment</p> Signup and view all the answers

    What is the main objective of the BGEC 113 lecture on environmental management?

    <p>To explain environmental pollution and degradation</p> Signup and view all the answers

    What is one of the learning outcomes of the Service Excellence Week 4 lecture?

    <p>To explain environmental pollution and degradation</p> Signup and view all the answers

    What is the topic of the Service Excellence Week 4 lecture?

    <p>Man and the Environment</p> Signup and view all the answers

    Who are the lecturers for the BGEC 113 course?

    <p>All the listed lecturers</p> Signup and view all the answers

    What is the process of land conversion from a vegetated area to a desert?

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

    Which of the following is NOT a greenhouse gas?

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

    What is the term used to describe the rise in the Earth's ambient temperature?

    <p>Global warming</p> Signup and view all the answers

    What is the definition of biodiversity?

    <p>The variety of genes, species, and ecosystems in a particular area</p> Signup and view all the answers

    Which of the following activities can contribute to desertification?

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

    What is the result of the absorption of heat by greenhouse gases in the atmosphere?

    <p>An increase in the Earth's ambient temperature</p> Signup and view all the answers

    What happens to organic matter when it is exposed to the right conditions?

    <p>It decays over time</p> Signup and view all the answers

    What is local pollution characterized by?

    <p>Environmental damage confined to a single community or region</p> Signup and view all the answers

    What is an example of local pollution?

    <p>Noise pollution</p> Signup and view all the answers

    What is characterized by environmental pollution that extends beyond the polluting source?

    <p>Regional pollution</p> Signup and view all the answers

    What is acid deposition also known as?

    <p>Acid rain</p> Signup and view all the answers

    What is environmental pollution with global implications?

    <p>Global pollution</p> Signup and view all the answers

    What type of pollutants are gases from industries' smokestacks?

    <p>Point source</p> Signup and view all the answers

    Why is it difficult to develop control policies for non-point source pollutants?

    <p>They are difficult to measure and monitor</p> Signup and view all the answers

    What is an example of a global environmental problem that requires international cooperation?

    <p>Ozone depletion</p> Signup and view all the answers

    What is a characteristic of point source pollutants?

    <p>They are easy to identify</p> Signup and view all the answers

    What is the main difference between point source and non-point source pollutants?

    <p>One is easy to identify, the other is not</p> Signup and view all the answers

    What is the objective of managing non-point source pollutants like agrochemicals and runoffs?

    <p>Targeting the substance causing the pollution</p> Signup and view all the answers

    Study Notes

    Environmental Degradation

    • Environmental degradation refers to the gradual deterioration or reduction in the quality of the natural environment, reducing its ability to provide natural resources and important life support services.
    • It can be caused by natural or anthropogenic activities.

    Environmental Pollution

    • Environmental pollution is the introduction of undesirable substances (liquid, solid, or gaseous) into the environment, making it impure and harmful to living things.
    • It can also be defined as the introduction of substances whose nature, location, and quantity have undesirable effects on the environment.

    Differences between Pollution and Degradation

    • Pollution usually involves the introduction of substances into the environment, whereas degradation is mostly due to the extraction of resources at a faster rate than they are replaced.
    • Excessive pollution can also lead to degradation of the environment.

    Causes of Environmental Degradation

    • Anthropogenic causes: Overpopulation, leading to increased demand and utilization of resources, putting pressure on the environment and natural resources.

    Impacts of Man's Activity on the Environment

    • Desertification: a process by which land covered with vegetation is converted to a desert, caused by overgrazing, over-farming, and deforestation.
    • Greenhouse effect: a mechanism by which certain gases in the earth's atmosphere trap heat, leading to an increase in the earth's ambient temperature, also known as global warming.

    Greenhouse Gases

    • Carbon dioxide
    • Chlorofluorocarbons
    • Methane
    • Nitrous oxides
    • Water vapor

    Effects of Environmental Degradation

    • Biodiversity loss: the extinction or loss of varieties of genes, species, and ecosystems.
    • Organic matter decay: becomes a problem when emission exceeds the assimilative capacity of the environment.

    Types of Pollutants

    • Local pollution: confined to a single community or a restricted localized region, examples include noise, urban smog, and solid waste pollution.
    • Regional pollution: extends or poses a risk well beyond the polluting source, examples include acid deposition/rain.
    • Global pollution: widespread with global implications, examples include global warming and ozone depletion caused by CFCs.
    • Point source pollution: refers to a single specific identifiable source or discharge point from which pollutants may enter the environment, examples include gases from industries smokestack and liquid waste from municipal treatment plants.
    • Non-point source pollution: refers to sources that cannot be identified accurately and degrades the environment in a diffuse, indirect way over a relatively broad area, examples include agrochemicals and runoffs.

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    Description

    Test your understanding of environmental pollution and degradation, as well as the similarities and differences between environmental concepts. This quiz is part of the Service Excellence Week 4 and covers the first semester of the BGEC 113 course.

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