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प्रश्न
Petroleum, ______ and ______ are fossil fuels.
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उत्तर
Petroleum, coal and natural gas are fossil fuels.
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संबंधित प्रश्न
Process of separation of different constituents from petroleum is called ______.
Why should fossil fuels like coal and petroleum be used judiciously?
There are two important fuels A and B both of which are extracted from deep inside the earth. Fuel A is a thick, dark, foul smelling liquid whereas fuel B is a black solid. Combustion of both the fuels produces products, C, D, E and F. The product C makes the rainwater only slightly acidic but it is mainly responsible for causing global warming. The product D is neither acidic nor basic. It is harmless and does not affect the environment in any way. Both E and F attack breathing system of humans and are mainly responsible for causing acid rain. In addition to combustion of fuels A and B, the product F is also formed when lightning occurs in the sky.
(a) What are (i) fuel A, and (ii) fuel B?
(b) Name (i) C (ii) D (iii) E, and (iv) F
(c) What is the process of formation of F during lightning known as?
(d) Which fuel is supposed to be exhausted sooner : A or B?
(e) Which fuel is mostly used for generating electricity at thermal power plants?
Write two disadvantages of burning fossil fuels.
What measures would you take to conserve electricity in your house?
Which of the following is not a constituent of petroleum?
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Umpetlore is a fossil fuel.
Coal and petroleum are formed from the dead remains of organisms and are known as ______.
Excessive burning of fossil fuels is a major cause of ______.
Crude oil is used as a sealant for waterproofing various surfaces.
