NCERT Solution for Class 10 Science Chapter 14
Sources of Energy
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Exercises Questions
Page No-255
Questions No-7 Part B
On what basis would you classify energy sources as exhaustible and inexhaustible?
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Options given in (a) and (b) are almost same. An energy source which can be quickly renewed is called renewable or inexhaustible. On the other hand, the energy source which cannot be renewed in foreseeable future are called non-renewable or exhaustible.
Exhaustible source of energy are those which deplete after few hundred years. Like coal and petroleum.
Inexhaustible source of energy are those which do not deplete and are available in abundant quantity. Like solar and wind energy.
(b) Exhaustible sources are those sources of energy, which will deplete and exhaust after a few hundred years. Coal, petroleum, etc. are the exhaustible sources of energy. Inexhaustible resources of energy are those sources, which will not exhaust in future. These are unlimited. Bio-mass is one of the inexhaustible sources of energy. Yes. The options given in (a) and (b) are the same.
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