1.

You would have seen at the roofs of the minister's house, hospital, hotels etc., solar panel for electricity and solar heater for hot water are placed. Now a days most of the people are preferring these methods. (i) What kind of source of energy is used here ? (ii) How it will affect our environment

Answer»

Solution :(i) Renewable SOURCE of energy.
(ii) Saving of ELECTRICAL energy, money. Non-polluting.


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