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प्रश्न
Excessive burning of fossil fuels is a major cause of ______.
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उत्तर
Excessive burning of fossil fuels is a major cause of air pollution.
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संबंधित प्रश्न
Which of the following is not a natural resource?
(a) soil
(b) water
(c) electricity
(d) natural gas
Which of the following combination of terms has no fossil fuel?
(a) wind, ocean, coke
(b) kerosene, tide, wind
(c) wood, wind, sun
(d) petrol, wood, sun
Write an answer to the following question in your own words.
Make a list of the components we obtain from mineral oil.
Match the following.
| Octane rating | Diesel |
| Cetane rating | Methane |
| Simplest hydrocarbon | Petrol |
| Peat | Bown in colour |
| Lignite | First stage coal |
Which of the following is not a constituent of petroleum?
You are provided with a mixture of petroleum and water. Can you suggest a method to separate the two?
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Keenrose is a fuel used in jet crafts.
We read in newspapers that burning of fuels is a major cause of global warming. Explain why.
Write some important uses of the various constituents of petroleum.
Crude oil is used as a sealant for waterproofing various surfaces.
