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प्रश्न
Why should we conserve the non-renewable sources of energy?
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उत्तर
We should conserve the non-renewable sources of energy because if these sources once finished, cannot be regenerated over a reasonable period of time.
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संबंधित प्रश्न
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(a) high calorific value and low ignition temperature
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(b) ethane
(c) butane
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(a) methane
(b) ethane
(c) propane
(d) butane
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