Question

- How do you appreciate the efforts of human
beings to discover an alternate energy sources
to coal and petroleum for their daily life.​

Answer 1

Coal and petroleum are exhaustible resources .they are widely used in our daily life.if we use them in this way, one day we find crisis of them. To meet the future needs scientists have worked on alternate resources .bio fuel,solar ,wind,tidal energy are renewable.hence I appreciate the efforts made to find alternate of coal..