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प्रश्न
Can you tell?
Why should we save energy?
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उत्तर
We should save energy to preserve limited natural resources, reduce environmental pollution, cut costs, support sustainability, and ensure energy availability for future generations.
संबंधित प्रश्न
What are the disadvantages of fossil fuels?
Why are we looking at alternate sources of energy?
A good fuel is one which possesses:
(a) high calorific value and low ignition temperature
(b) high calorific value and high ignition temperature
(c) high calorific value and moderate ignition temperature
(d) low calorific value and moderate ignition temperature
What are the various steps which can be taken to control (or reduce) pollution caused by burning fossil fuels?
Which of the following is not a fossil source of energy?
(a) kerosene oil
(b) cow-dung cakes
(c) CNG
(d) coal
The non-renewable source of energy among the following is:
(a) hydroelectricity
(b) sewage gas
(c) natural gas
(d) gobar gas
The world's known coal reserves are expected to last for about:
(a) 200 years
(b) 400 years
(c) 500 years
(d) 100 years
What is meant by the renewable and non-renewable sources of energy? State two differences between them, giving two examples of each
Write a short note on nuclear power.
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Nutsgilh is an example of inexhaustible natural resources.
