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प्रश्न
Coal is one of the ______ used to cook food.
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उत्तर
Coal is one of the fuels used to cook food.
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संबंधित प्रश्न
An examples of a renewable source of energy is:
(a) petrol
(b) natural gas
(c) biogas
(d) kerosene
Which fossil fuel formed by the buried remains of large land plants?
Apart from cattle dung, what other substances can be added to a biogas plant?
Which produced of the nuclear fission of uranium-235 is utilised to cause further fission of its nuclei?
Which of the following is ultimately not derived from the sun's energy (or solar energy)?
(a) wind energy
(b) nuclear energy
(c) biomass energy
(d) ocean thermal energy
Why should we conserve the non-renewable sources of energy?
Why are fossil fuels called non-renewable sources of energy?
Higher Order Thinking Skill (HOT)
What are the objectives for replacing non-conventional energy resources from conventional energy resources?
Various materials which are obtained from nature are called natural resources. Which of the following is not a natural resource?
Complete the crossword in figure with the help of the clues:
Across
1. Fuels obtained from dead remains of living organisms. (6, 5)
2. A process by which the various constituents of petroleum are separated. (8)
3. A porous black substance obtained from coal. (4)
4. Another name for motor fuel. (6)
Down
5. The substance obtained by carbonisation. (4)
6. Fuel for heavy motor vehicles. (6)
7. A petroleum product used for road surfacing. (7)
8. Dead remains of sea animals got converted into it. (9)
