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प्रश्न
Imagine that all the exhaustible natural resources are exhausted by human activities. Do you think survival of living beings would be possible? If yes, why? If not, why not?
उत्तर
If all the exhaustible natural resources are exhausted by human activities, then the survival of living beings would not be possible. Actually, fossil fuels are the most important source of energy for us today. They are concentrated source of energy and give off heat and light on burning.The heat can be used to cook food or to run engines such as automobile engines. It can be used to generate electricity as in powerhouse where the most common fuel used is coal.
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संबंधित प्रश्न
Define ignition temperature of a fuel.
Why are fossil fuels classified as non-renewable source of energy?
What are fossil fuels? Give three examples of fossil fuels.
Which of the following is not produced by the burning of fossil fuels?
(a) nitrogen oxides
(b) sulphur oxides
(c) sodium oxides
(d) carbon oxides
LPG consists mainly of:
(a) butane
(b) ethane
(c) butanone
(d) methane
Compare the sun and the fossil fuels as the sources of energy.
What do you know about wind energy?
Who is the odd one out?
Make a list of conventional and non-conventional sources of energy. Give a brief description of harnessing one nonconventional source of energy.
Sunlight and air are inexhaustible natural resources. Comment.
