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Consider the various options we have when we choose a fuel forcooking our food.

What are the criteria you would consider when trying to categorise something as a good fuel?

Would your choice be different if you lived
(a) in a forest?
(b) in a remote mountain village or small island?
(c) in New Delhi?
(d) lived five centuries ago?

How are the factors different in each case?
 
A good source of energy has the following properties:
  • It should be .
  • It should .
  • Smoke and Pollution .
  •  storage and transportation
  • The amount of energy produced per unit volume or mass should be .
Choice of fuel in different conditions:
 
In a forest -
 
In a remote mountain village or small island -
 
New Delhi -
 
Lived five centuries ago -