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प्रश्न
Petroleum was formed from organisms
पर्याय
living on the land
living on the plants
living in the sea
living on the rocks
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उत्तर
living in the sea
Explanation:
Petroleum was formed by the decomposition of the remains of tiny plants and animals buried under the sea millions of years ago.
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संबंधित प्रश्न
Kerosene is not a fossil fuel.
Explain the process of formation of petroleum.
Which fossil fuel is conserved when we save on electricity?
Fill in the following blank with suitable word :
When a fuel burns in an insufficient supply of air, then some poisonous gas called ......... is also produced.
Why should fossil fuels like coal and petroleum be used judiciously?
The poisonous gas which reduces the oxygen-carrying capacity of blood to a large extent is :
(a) SO2
(b) NO
(c) CO
(d) CO2
A man bought a device X which could cook pulses, vegetables and rice without using any fuel like wood, coal, kerosene or LPG, etc. This device did not work at night. It also took a lot of time for cooking.
(a) Name the device X.
(b) What is the source of energy which cooks food in this device?
(c) What is the name of the process which traps energy in this device?
(d) State one advantage (other than saving on fuel) or using such a device for cooking food.
Match the following.
| Octane rating | Diesel |
| Cetane rating | Methane |
| Simplest hydrocarbon | Petrol |
| Peat | Bown in colour |
| Lignite | First stage coal |
What measures would you take to conserve electricity in your house?
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Umpetlore is a fossil fuel.
