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प्रश्न
We read in newspapers that burning of fuels is a major cause of global warming. Explain why.
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उत्तर
Burning of fuels is a major cause of global warming because they produce a lot of greenhouse gas ‘carbon dioxide’ on burning. The earth’s atmosphere allows most of the sunlight that falls on it to pass through and heat the surface. But greenhouse gases such as carbon dioxide, methane, water vapours trap the heat radiated from earth. This leads to an increase in earth’s temperature. This is known as greenhouse effect. When concentration of greenhouse gases such as carbon dioxide increases, greenhouse effect also increases. This is known as global warming. It may cause melting of ice caps and glaciers resulting the rise in sea levels.
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संबंधित प्रश्न
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Name a clean gaseous fuel other than LPG and natural gas.
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State any five steps to reduce the consumption of coal and petroleum products.
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(a) soil
(b) water
(c) electricity
(d) natural gas
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(a) Fossil fuels are natural resources, then why do we need to conserve them?
(b) List any two ways of saving the fossil fuels.
(c) State two values exhibited to Deepa.
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Write an answer to the following question in your own words.
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Match the following.
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| Simplest hydrocarbon | Petrol |
| Peat | Bown in colour |
| Lignite | First stage coal |
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Umpetlore is a fossil fuel.
