What is a good fuel?
A fuel is said to be good when it is easily available and when it produces a large amount of heat energy when burnt.
What are the environmental consequences of the increasing demand for energy? What steps would you suggest to reduce energy consumption?
What are the advantages and disadvantages of using a solar cooker? Are there places where solar cookers would have limited utility?
What are the qualities of an ideal source of energy?
On what basis would you classify energy sources as:
a) Renewable and non-renewable?
b) Exhaustible and inexhaustible?
Are the options are given in (a) and (b) the same?
What are the limitations of extracting energy from:
a) The wind?