Question

If you are stuck in a forest which source of energy will you consider to be efficient and why?

• A. nuclear energy
• B. coal
• C. wood
• D. wind energy

Answer 1

The correct option is C

wood

A good source should have following properties such as:-

1) Should do large amount of work per unit mass

2) economical

3) easy to transport

4) easily accessible

Out of the given options, windmill and coal are not easily accessible hence it cannot be used. On the other hand considering biomass and wood, wood supplies more energy than biomass. Hence wood would be the right choice.