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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
Process of separation of different constituents from petroleum is called ______.
Kerosene is not a fossil fuel.
Explain the process of formation of petroleum.
Which fossil fuel is conserved when we save on electricity?
State any five steps to reduce the consumption of coal and petroleum products.
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.
Write an answer to the following question in your own words.
Make a list of the components we obtain from mineral oil.
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.
Write some important uses of the various constituents of petroleum.
