Class VIII Conservation of Fossil Fuels
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Questions and Answers

What is the main reason for the belief that fossil fuels took millions of years to form?

  • Dead organisms changing into fossil fuels slowly (correct)
  • Rapid formation process
  • Presence of petrochemicals
  • Limited known reserves
  • Why is it important to use fossil fuels only when absolutely necessary?

  • To increase air pollution
  • To reduce global warming
  • To accelerate the formation of petrochemicals
  • To safeguard them for future generations (correct)
  • What does the Petroleum Conservation Research Association (PCRA) recommend to conserve petrol and diesel while driving?

  • Using high speed for efficient fuel consumption
  • Constant and moderate speed driving (correct)
  • Ignoring tyre pressure checks
  • Avoiding regular vehicle maintenance
  • What does it mean if oil is described as 'sweet' according to the text?

    <p>It contains low or no sulphur</p> Signup and view all the answers

    Which alternative source of energy is NOT mentioned as a recommendation in the text?

    <p>Geothermal energy</p> Signup and view all the answers

    Why is checking tyre pressure regularly recommended as a way to conserve fuel?

    <p>To prevent fuel wastage from low or high pressures</p> Signup and view all the answers

    Study Notes

    Fossil Fuels and Conservation

    • Fossil fuels, such as coal, petroleum, and natural gas, took millions of years to form from dead organisms and their known reserves are limited.
    • The use of fossil fuels is a significant contributor to air pollution and global warming.
    • It is essential to conserve fossil fuels by using them only when necessary, to preserve them for the production of petrochemical-based products and for future generations.

    Alternative Energy Sources

    • Alternative energy sources, such as solar energy, tidal energy, and wind energy, should be explored for energy purposes.

    Conservation of Petrol and Diesel

    • The Petroleum Conservation Research Association (PCRA) in India offers tips to conserve petrol and diesel while driving:
    • Drive at a constant and moderate speed as much as possible.
    • Switch off the engine when waiting at traffic lights or for other reasons.
    • Regularly check tyre pressure, as low or high pressure can waste fuel.
    • Ensure regular maintenance of your vehicle at a garage.

    Fossil Fuels and Their Properties

    • Oil is classified as "sweet" if it contains less sulphur and "sour" if it contains more sulphur.
    • Examples of fossil fuels include petrol, diesel, LPG, and CNG.
    • Fossil fuels are formed from the dead remains of living organisms.

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    Description

    Learn about the conservation of fossil fuels and the importance of using fuels only when absolutely necessary to save these non-renewable resources. Understand the impact of fossil fuels on air pollution and global warming.

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