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प्रश्न
Coal and petroleum are formed from the dead remains of organisms and are known as ______.
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उत्तर
Coal and petroleum are formed from the dead remains of organisms and are known as fossil fuels.
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संबंधित प्रश्न
Name the products of combustion of fossil fuels like coal and petroleum products. How do they affect us and our environment?
The poisonous gas which reduces the oxygen-carrying capacity of blood to a large extent is :
(a) SO2
(b) NO
(c) CO
(d) CO2
Which of the following is not a natural resource?
(a) soil
(b) water
(c) electricity
(d) natural gas
The term petroleum means ________
Which of the following is not a constituent of petroleum?
Petroleum, ______ and ______ are fossil fuels.
We say fossil fuels will last only for a few hundred years. Comment.
We read in newspapers that burning of fuels is a major cause of global warming. Explain why.
Crude oil is used as a sealant for waterproofing various surfaces.
Give reason for the following:
Petroleum is considered a harmful source of energy.
