Question

explain any 4 importance of non conventional sources of energy.

Answer 1

(1).These are renewable resources. The non-conventional sources of energy can be renewed with minimum effort and money
(2).They are Newly developed sources of energy and not primitive
(3).The non-conventional sources of energy are abundant in nature. According to energy 
(4).Non-conventional sources of energy are pollution-free and eco-friendly

Answer 2

1 AS THEY ARE ECO FRIENDLY
2 THEY ARE EASILY AVAILABLE
3 THEY CAN BE REPELNISHED