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प्रश्न
Why are fossil fuels called non-renewable sources of energy?
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उत्तर
Fossil fuels (coal, petrol, diesel etc.) are exhaustible i.e. if these are once finished can not be regenerated over a reasonable period of time. That is why fossil fuels are called non-renewable sources of energy.
संबंधित प्रश्न
What is the composition of liquefied petroleum gas (LPG)?
LPG consists mainly of:
(a) butane
(b) ethane
(c) butanone
(d) methane
A substance X is added to LPG cylinders while filling so as to make the detection of leakage of LPG from the cylinder easy.
How does substance X make the detection of leakage of LPG easy?
Write any two advantages of using biogas.
What are non-renewable resources of energy? Give two examples of such resources.
State whether the following is True or False.
Coal and petroleum are renewable energy resources.
Can you tell?
Which forms of energy from the sun are used in solar energy devices?
Which part of the solar cooker is responsible for greenhouse effect?
Various materials which are obtained from nature are called natural resources. Which of the following is not a natural resource?
Which of the following is a pair of exhaustible natural resources?
