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प्रश्न
Name two sources of energy which you consider to be non-renewable. Give reason for your choice.
उत्तर
The following are two non-renewable sources of energy.
a) Coal
b) Crude oil
They are non-renewable because they are present in limited amounts on the earth. Once they are exhausted, they cannot be replenished, and they will no longer be available to us
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संबंधित प्रश्न
"The ignition temperature of a fuel is 80°C". What does this mean?
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(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
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