Definition and Scope of Environmental Studies
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Questions and Answers

Which of the following is considered a biotic natural resource?

  • Plants (correct)
  • Water
  • Minerals
  • Coal
  • What type of resources are forest cover, wildlife numbers, and wind energy examples of?

  • Renewable resources (correct)
  • Abiotic resources
  • Non-renewable resources
  • Human-made resources
  • Which type of natural resources do minerals, coal, and petroleum belong to?

  • Geothermal resources
  • Biotic resources
  • Renewable resources
  • Non-renewable resources (correct)
  • What are natural resources that are useful to man or could be useful under conceivable circumstances called?

    <p>Potential resources</p> Signup and view all the answers

    Which of the following is NOT an example of a natural resource?

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

    What do natural resources encompass based on the lecture?

    <p>Materials found in the environment without human intervention</p> Signup and view all the answers

    In what domain were natural resources traditionally associated with?

    <p>Natural sciences</p> Signup and view all the answers

    Why are renewable resources considered more sustainable than non-renewable resources?

    <p>Renewable resources regenerate within a given time period</p> Signup and view all the answers

    What is one of the reasons it's important for humans to protect all living species?

    <p>To maintain the aesthetic and recreational values of nature</p> Signup and view all the answers

    Which extinct species was endemic to the island of Mauritius in the Indian Ocean?

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

    Why are National Parks and Wildlife Sanctuaries established by governments?

    <p>To provide learning experiences about ecosystem functioning</p> Signup and view all the answers

    What can be witnessed in the magnificence of a mountain, the power of the sea, the beauty of a forest, and the vast expanse of the desert?

    <p>The aesthetic and recreational values of nature</p> Signup and view all the answers

    In what way do National Parks and Wildlife Sanctuaries contribute to protecting biodiversity?

    <p>By preserving relatively undisturbed habitats for wild species</p> Signup and view all the answers

    What is a consequence of the degradation of habitats due to human activities on living species?

    <p>Threat to their existence leading to possible extinction</p> Signup and view all the answers

    In which type of habitat does halosere succession take place?

    <p>A habitat with saline water or soil conditions</p> Signup and view all the answers

    What is the term for succession that occurs on a xeric habitat with minimal moisture?

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

    Which type of succession starts in an aquatic habitat?

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

    What is the phase of ecological succession that involves the development of a bare area before new species arrive?

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

    Which type of successional phase occurs when replacement of a community is due to external conditions rather than existing organisms?

    <p>Allogeneic Succession</p> Signup and view all the answers

    What type of succession takes place where adequate moisture conditions exist?

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

    What is one of the critical roles played by aquatic ecosystems?

    <p>Recycling nutrients and cleaning water</p> Signup and view all the answers

    How do species in aquatic ecosystems contribute to the ecosystem's health?

    <p>By providing a source of food for other animals</p> Signup and view all the answers

    Which of the following is NOT a function of aquatic ecosystems as mentioned in the text?

    <p>Creating deserts</p> Signup and view all the answers

    Why are aquatic ecosystems considered a vital source of food for many people?

    <p>Because they provide a source of protein, vitamins, and minerals</p> Signup and view all the answers

    What does the movement and cycling of water in aquatic ecosystems help maintain?

    <p>The ecosystem's health</p> Signup and view all the answers

    Apart from fish, what other types of living organisms can be found in aquatic ecosystems?

    <p>Amphibians, reptiles, and invertebrates</p> Signup and view all the answers

    What is the artificial process by which saline water is converted to fresh water?

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

    Where does ground water primarily exist?

    <p>Inside the pores of the soil and aquifers</p> Signup and view all the answers

    Which type of water is naturally lost through discharge to the oceans?

    <p>Surface water</p> Signup and view all the answers

    What is the characteristic that defines an aquifer?

    <p>Transmitting groundwater to the surface</p> Signup and view all the answers

    When does a river become dry at its end point?

    <p>When it reaches its last point without continuing to another body of water</p> Signup and view all the answers

    Under what circumstances can ice appear as a more or less opaque bluish-white color?

    <p>When there are impurities like soil particles or air bubbles present</p> Signup and view all the answers

    What is the primary reason for soil compaction leading to desertification?

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

    How does overgrazing contribute to desertification?

    <p>Affects wind patterns</p> Signup and view all the answers

    What effect does salinization have on land?

    <p>Causes a buildup of salts</p> Signup and view all the answers

    How does deforestation impact soil fertility?

    <p>Reduces soil fertility</p> Signup and view all the answers

    Which factor contributes to the quick draining off of surface run-off?

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

    How does soil compaction affect seed germination?

    <p>Prevents seed germination</p> Signup and view all the answers

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