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प्रश्न
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Umpetlore is a fossil fuel.
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उत्तर
Petroleum is a fossil fuel.
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संबंधित प्रश्न
Why are coal and petroleum categorised as natural resources? Give a reason as to why they should be used judiciously.
Which fossil fuel is conserved when we save on electricity?
Choose one term from the following which include all others :
coal, natural gas, fossil fuels, petroleum
Fill in the following blanks with suitable words :
LPG is a ........... fuel but biogas is not a..........fuel.
Although coal and petroleum are produced by the degradation of biomass, even then we need to conserve them. Why?
State any five steps to reduce the consumption of coal and petroleum products.
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.
(a) What type of device is (i) P, and (ii) Q?
(b) Name one component which is present in Q but not in P.
(c) Name the energy C.
(d) Which device is more energy efficient : P or Q?
(e) Which fossil fuel is most likely to be conserved if all of us switch over to devices like P?
Write two disadvantages of burning fossil fuels.
Coal and petroleum are formed from the dead remains of organisms and are known as ______.
Give reason for the following:
Petroleum is considered a harmful source of energy.
