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प्रश्न
State whether the following is True or False.
Coal and petroleum are renewable energy resources.
पर्याय
True
False
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उत्तर
False
Correct Statement: Coal and petroleum are non-renewable energy resources.
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संबंधित प्रश्न
Why are we looking at alternate sources of energy?
Which of the following fuels has the highest calorific value?
(a) natural gas
(b) methane gas
(c) hydrogen gas
(d) biogas
What is meant by conventional sources of energy? Write the names of two conventional sources of energy.
Which of the following is not a fossil source of energy?
(a) kerosene oil
(b) cow-dung cakes
(c) CNG
(d) 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.
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
One of the following is not required in the formation of biogas in a biogas plant. This is:
(a) cow-dung
(b) water
(c) oxygen
(d) anaerobic bacteria
The fuel which is not obtained from biomass is:
(a) firewood
(b) cow-dung cakes
(c) coke
(d) charcoal
A certain form of energy is available due to the difference in the temperature of water at the surface of the ocean and its deeper levels.
(a) Name the form of energy.
(b) Is this energy ultimately derived from the sun or not?
(c) Explain how this form of energy can be converted into electricity.
(d) What is the minimum temperature difference in water at the surface of ocean and its deeper level which is required to operate power plants based on is energy?
Select the renewable and non-renewable sources of energy from the following :
- Coal
- Wood
- Water
- Diesel
- Wind
- Oil
Fill in the blank
_______is the coal with the highest percentage of coal.
What do you know about wind energy?
Describe the four major types of coal.
Which of the following is a non-renewable source of energy?
Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?
Make a list of conventional and non-conventional sources of energy. Give a brief description of harnessing one nonconventional source of energy.
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?
