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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?
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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
What are the disadvantages of burning fossil fuels?
Explain how, sun is considered to be the ultimate source of fossil fuels
Fossil fuels are energy rich compounds of an element X which were originally made by the plants with help of sun's energy.
Name another element which is usually found in combination with X in fossil fuels.
The world's known coal reserves are expected to last for about:
(a) 200 years
(b) 400 years
(c) 500 years
(d) 100 years
State whether the following is True or False.
Renewable energy resources have limited supply in nature.
Write a short note on nuclear power.
Who is the odd one out?
State the main difference between the renewable and non-renewable sources of energy.
What are the environmental consequences of using fossil fuels? Suggest the steps to minimise the pollution caused by various sources of energy including non-conventional sources of energy.
Sunlight and air are inexhaustible natural resources. Comment.
