Environmental Studies AECC Model MCQ Questions
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Questions and Answers

Eutrophication means

  • Thermal change in water
  • Excessive water evaporation
  • Filling up of water body with aquatic due to extra nourishment (correct)
  • Increase in salt concentration in water
  • Biochemical oxygen demand means

  • Industrial pollution
  • Dissolved O2 needed by microbes to decompose organic waste (correct)
  • Air pollution
  • Polluting capacity of effluent
  • The main components of photochemical smog is

  • Carbon monoxide
  • Sulphur dioxide
  • Water vapour
  • Oxides of nitrogen (correct)
  • Deforestation generally decreases

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

    The term Alpha diversity refers to

    <p>Community and ecosystem diversity</p> Signup and view all the answers

    Study Notes

    Environmental Concepts

    • Eutrophication is a process where a body of water becomes enriched with excess nutrients, leading to an overgrowth of algae and depleting the oxygen in the water.
    • Biochemical oxygen demand (BOD) is a measure of the amount of oxygen required by microorganisms to break down organic matter in water, indicating the level of water pollution.
    • The main components of photochemical smog are volatile organic compounds, nitrogen oxides, and ozone, which react in the presence of sunlight to form a harmful mixture of air pollutants.
    • Deforestation generally decreases biodiversity, as it leads to the destruction of habitats and the loss of ecosystems, resulting in a decline in the variety of plant and animal species.
    • Alpha diversity refers to the diversity of species within a specific geographic area or ecosystem, measuring the variety of species present in a particular habitat or community.

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    Description

    Test your knowledge of environmental studies with these model multiple-choice questions. Choose the correct alternative for each question and enhance your understanding of eutrophication, solid waste, and other environmental concepts.

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