Question

What is a good source of energy?

Answer 1

A good source of energy should have the following qualities:

•  It should be easily available.
   
• It should do a large amount of work (or produce large amount of heat) perunit volume/mass.
   
• It should be easy to store and transport.
   
• It should be economical.
   
• It should cause less environmental pollution.

Answer 2

A good source of energy fulfils the following criteria:
→ It produces a lot of heat per unit mass.
→ It does a huge amount of work per unit mass.
→ It is easily accessible.
→ It is easy to store and transport.
→ It is economical.
→ It produces less amount of smoke.