Environmental Science Quiz
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Questions and Answers

What ecological concept does the term Alpha diversity primarily refer to?

  • Community and ecosystem diversity (correct)
  • Species diversity
  • Diversity among plants
  • Genetic diversity
  • Deforestation generally leads to a decrease in which environmental factor?

  • Soil erosion
  • Drought
  • Rainfall (correct)
  • Global warming
  • What is the main component responsible for the formation of photochemical smog?

  • Water vapor
  • Sulphur dioxide
  • Oxides of nitrogen (correct)
  • All of the above
  • What is the main implication of having biodiversity hotspots around the world?

    <p>Protection of unique and threatened species</p> Signup and view all the answers

    What is the primary cause of eutrophication in water bodies?

    <p>Excessive nutrient runoff</p> Signup and view all the answers

    What does coral bleaching signify?

    <p>Decline in zooxanthellae due to climate change</p> Signup and view all the answers

    Which of the following contributes to the formation of photochemical smog?

    <p>Combustion of fossil fuels in the presence of sunlight</p> Signup and view all the answers

    Which gas is the largest contributor towards global warming?

    <p>CO2</p> Signup and view all the answers

    What is the main purpose of using the absorption technique for controlling gaseous pollutants?

    <p>Absorbing pollutants</p> Signup and view all the answers

    In the context of carbon credits, what does the term 'carbon credit' represent?

    <p>The difference between allowed and emitted carbon</p> Signup and view all the answers

    Study Notes

    Ecological Concepts

    • Alpha diversity primarily refers to the diversity of species within a particular ecosystem or region.

    Environmental Factors

    • Deforestation leads to a decrease in biodiversity.

    Air Pollution

    • The main component responsible for the formation of photochemical smog is nitrogen oxides.
    • Photochemical smog is also formed by the presence of volatile organic compounds (VOCs).
    • The primary cause of photochemical smog is the reaction between nitrogen oxides and VOCs in the presence of sunlight.

    Biodiversity

    • The main implication of having biodiversity hotspots around the world is that these areas are rich in endemic species and are under threat from habitat destruction and other human activities.

    Water Pollution

    • The primary cause of eutrophication in water bodies is the excessive amount of nutrients, particularly phosphorus and nitrogen, from human activities such as agricultural runoff and sewage.

    Marine Ecosystems

    • Coral bleaching signifies the expulsion of algal symbionts by coral reefs due to stress caused by rising water temperatures, leading to the loss of coral reefs and the associated ecosystem.

    Air Pollution Control

    • The absorption technique is used to control gaseous pollutants by capturing and separating them from the air using an adsorbent material.

    Climate Change

    • Carbon dioxide is the largest contributor to global warming.
    • A carbon credit represents the right to emit one ton of carbon dioxide or other greenhouse gases, and is used as a mechanism to reduce greenhouse gas emissions and mitigate climate change.

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    Description

    Test your knowledge on environmental science with this quiz covering topics like global warming, eutrophication, the greenhouse effect, air pollutants, smog, and ozone. Evaluate your understanding of environmental issues and their impact on the planet.

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