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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
State two important uses of natural gas
The aviation fuel which is used in the engines of jet aeroplanes is:
(a) diesel
(b) kerosene
(c) petrol
(d) CNG
The ultimate source of energy stored in fossil fuels is:
(a) moon
(b) earth
(c) sun
(d) sea
LPG consists mainly of:
(a) butane
(b) ethane
(c) butanone
(d) methane
Fossil fuels are energy rich compounds of an element X which were originally made by the plants with help of sun's energy.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.
Compare the sun and the fossil fuels as the sources of energy.
Name the constituents of biogas.
Fill in the following blank with suitable word:
Tidal waves build up and recede ........... a day.
Can you tell?
Why should we maximise the use of non-conventional energy resources?
Explain why is it no wise to regard wood as a renewable sources of energy.
