Question

How can you classify fuel mention the basic for all the classification?

Answer 1

Fuel can be classified :

i) Based on occurrence,

ii) Based on physical state.

It is further divided in the following types:

i) Based on occurrence:

a) Primary or Natural fuels

Wood and coal

b) Secondary or prepared fuels

Charcoal, petrol and coke

ii) Based on physical state:

a) Liquid fuel

Crude Petrolium and Natural gasoline

b) Solid fuel

Wood and Coal

c) Gaseous fuel

Natural gas

Hope it helps, feel free to mark as brainlliest...