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प्रश्न
The term petroleum means ________
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उत्तर
The term petroleum means Rock oil.
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संबंधित प्रश्न
Kerosene is not a fossil fuel.
Which fossil fuel is conserved when we use bicycle for covering short distances instead of a motorbike?
Fill in the following blanks with suitable words :
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A person buys two electrical devices P and Q for lighting purposes in his house. The device P consumes only 5 units of electricity in a month but device Q consumes 15 units of electricity in a month when used for the same number of hours daily. The device Q wastes a lot of electricity by radiating energy C but P does not do so.
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