question_answer

  We   are   looking   for   alternative   or non-conventional sources of energy. State three reasons for it.         

Answer:

                  The increase in population, greater use of machines due to industrialisation and limited supply of fossil fuels are the few reasons why we are looking for alternative or non-conventional sources of energy.                   (2)                 Energy concentrated = Reflecting percentage of energy x surface area x time x rate of solar energy delivered                                               (1)                          (1)