Question

Give examples for solid fuels. What are some disadvantages of solid fuel?

Answer 1

Examples : 1.5 Marks
Disadvantage : 1.5 Marks

Coal, Charcoal and wood are examples of some solid fuel.
Solid fuels are basically carbon or compounds of carbon. When these substances are heated, they cause environmental pollution and also leaves residue in the form of ash which needs to be disposed properly to avoid further pollution.