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प्रश्न
Sunlight and air are inexhaustible natural resources. Comment.
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उत्तर
These resources are present in an unlimited quantity in nature and are not likely to be exhausted by human activities. There is a never ending supply of these resources in nature. These resources can be used again and again. They last forever.
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संबंधित प्रश्न
On what basis would you classify energy sources as
(a) renewable and non-renewable?
(b) exhaustible and inexhaustible?
Are the options given in (a) and (b) the same?
Which of the following is not a renewable source of energy?
(a) wind
(b) flowing water
(c) fossil fuels
(d) fuel wood
Why is LPG considered a good fuel?
Describe the construction and working of a biogas plant with the help of a labelled diagram.
The constituent of biogas which makes it an excellent fuel is:
(a) butane
(b) methane
(c) propane
(d) ethane
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
Which of the two is more energy efficient: filament type electric bulb or CFL? Why?
An energy efficient devices for producing light is:
(a) DLF
(b) CFL
(c) FCL
(d) LPG
Why is the use of wood as a fuel not advisable although wood is a renewable source of energy?
Choose the correct answer.
Windmills have been used for many centuries in
