Q8 of 24 Page 254

What are the qualities of an ideal source of energy ?

An ideal source of energy has the following qualities:

(i) It gives a large amount of energy per unit mass.


(ii) It does not cause any pollution.


(iii) It is easy to store and safe for transportation.


(iv) It is safe to handle and easy to use.


(v) It is cheap and available easily.


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(a) wind ?


(b) waves?


(c) tides?

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On what basis would you classify energy sources as:

(a) Renewable and Non-Renewable ?


(b) Inexhaustible and Exhaustible ?


Are the options given in (a) and (b) the same?

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(a) What are the environmental consequences of the increasing demand for energy?

(b) What steps would you suggest to reduce energy consumption ?