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प्रश्न
Fill in the blank
Coal, petroleum, and natural gas are _________fuels.
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उत्तर
Coal, petroleum, and natural gas are fossil fuels.
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संबंधित प्रश्न
Which of the following fuels has the highest calorific value?
(a) natural gas
(b) methane gas
(c) hydrogen gas
(d) biogas
Write the full forms of CNG and LPG.
What are the disadvantages of burning fossil fuels?
Why is LPG considered a better fuel than coal?
State whether the following statement is true or false:
Tidal energy is one of the forms in which solar energy manifests itself in oceans.
Fill in the following blank with suitable word:
Biomass is another form in which ........... energy manifests itself.
What are the raw materials used for making biogas?
Most of the sources of energy that we sue represent stored solar energy. Which of the following is not ultimately derived from the sun's energy?
(a) wind energy
(b) geothermal energy
(c) fossil fuels
(d) biomass
The source of energy of the sun is:
(a) conversion of hydrogen gas into helium
(b) conversion of carbon fuel into carbon dioxide
(c) burning of hydrogen gas present in the sun
(d) disintegration of uranium into barium and krypton
Which of the two is more energy efficient: filament type electric bulb or CFL? Why?
What is meant by the renewable and non-renewable sources of energy? State two differences between them, giving two examples of each
Choose the correct answer.
The coal that has the highest percentage of carbon is
State whether the following is True or False.
Coal and petroleum are renewable energy resources.
Explain why is it no wise to regard wood as a renewable sources of energy.
Higher Order Thinking Skill (HOT)
What are the objectives for replacing non-conventional energy resources from conventional energy resources?
Which of the following is a non-renewable source of energy?
Which among the following is the non-renewable resources?
Look at the figure where petroleum and natural gas deposits are shown. Why do we find oil layer above water layer?
Imagine that all the exhaustible natural resources are exhausted by human activities. Do you think survival of living beings would be possible? If yes, why? If not, why not?
