1. A good fuel produces a large amount of heat on burning, does not produce a lot of smoke and is easily available. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-14/

    A good fuel produces a large amount of heat on burning, does not produce a lot of smoke and is easily available.

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-14/

    See less
    • 3
  2. A good source of energy should have the following qualities: • It should be easily available. • It should do a large amount of work (or produce large amount of heat) per unit volume/mass. • It should be easy to store and transport. •It should be economical. • It should cause less environmental polluRead more

    A good source of energy should have the following qualities:
    • It should be easily available.
    • It should do a large amount of work (or produce large amount of heat) per unit volume/mass.
    • It should be easy to store and transport.
    •It should be economical.
    • It should cause less environmental pollution.

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-14/

    See less
    • 2
  3. Industrialization increases the demand for energy. Fossil fuels are easily accessible sources of energy that fulfil this demand. The increased use of fossil fuels has a harsh effect on the environment. Too much exploitation of fossil fuels increases the level of greenhouse gas content in the atmosphRead more

    Industrialization increases the demand for energy. Fossil fuels are easily accessible sources of energy that fulfil this demand. The increased use of fossil fuels has a harsh effect on the environment. Too much exploitation of fossil fuels increases the level of greenhouse gas content in the atmosphere, resulting in global warming and a rise in the sea level.
    It is not possible to completely reduce the consumption of fossil fuels. However, some measures can be taken such as using electrical appliances wisely and not wasting electricity. Unnecessary usage of water should be avoided. Public transport system with mass transit must be adopted on a large scale. These small steps may help in reducing the consumption of natural resources and conserving them.

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-14/

    See less
    • 1
  4. Solar cooker uses Sun’s energy to cook food stuff. It is inexhaustible, clean and renewable source of energy. It is free for all and available in unlimited amount. Hence, operating a solar cooker is not expensive. Disadvantage of a solar cooker is that it (solar cooker) is very expensive. It works oRead more

    Solar cooker uses Sun’s energy to cook food stuff. It is inexhaustible, clean and renewable source of energy. It is free for all and available in unlimited amount. Hence, operating a solar cooker is not expensive.
    Disadvantage of a solar cooker is that it (solar cooker) is very expensive. It works only in sunlight. Hence, on cloudy day, it becomes useless.
    The places where the days are too short or places with cloud covers round the year, have limited utility for solar cooker.

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-14/

    See less
    • 0
  5. An ideal source of energy must be: • Economical • Easily accessible • Smoke/pollution free • Easy to store and transport • Able to produce huge amount of heat and energy on burning For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-14/

    An ideal source of energy must be:
    • Economical
    • Easily accessible
    • Smoke/pollution free
    • Easy to store and transport
    • Able to produce huge amount of heat and energy on burning

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-14/

    See less
    • 0