Environmental Studies MCQ Quiz
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Questions and Answers

Which of the following best defines eutrophication?

  • Thermal change in water
  • Filling up of water body with aquatic due to extra nourishment (correct)
  • Solid waste
  • None of the above
  • What does biochemical oxygen demand (BOD) mean?

  • Industrial pollution
  • Air pollution
  • Polluting capacity of effluent
  • Dissolved O2 needed by microbes to decompose organic waste (correct)
  • Which of the following is the main component of photochemical smog?

  • Water vapour
  • Sulphur dioxide
  • Oxides of nitrogen (correct)
  • All of the above
  • How does deforestation generally affect rainfall?

    <p>Decreases rainfall</p> Signup and view all the answers

    What does the term 'Alpha diversity' refer to?

    <p>Biodiversity within a specific habitat</p> Signup and view all the answers

    Study Notes

    Eutrophication

    • Eutrophication is the process of excessive nutrient accumulation in water bodies, leading to overgrowth of aquatic plants and depletion of oxygen, causing harm to aquatic life.

    Biochemical Oxygen Demand (BOD)

    • Biochemical Oxygen Demand (BOD) is the amount of dissolved oxygen needed by microorganisms to break down organic matter in water.

    Photochemical Smog

    • The main component of photochemical smog is ground-level ozone, a toxic gas formed through the reaction of sunlight, nitrogen oxides, and volatile organic compounds.

    Deforestation and Rainfall

    • Deforestation generally decreases rainfall, as forests absorb and recycle water, and their removal disrupts the water cycle, leading to reduced precipitation.

    Alpha Diversity

    • Alpha diversity refers to the variety of different species within a particular community or ecosystem, measuring the richness of species in a specific area.

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    Description

    Test your knowledge on Environmental Studies with this model MCQ quiz. Answer questions on topics like eutrophication, biodiversity, and sustainable development. Each question carries 2 marks, so make sure to choose the correct alternative for maximum score.

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