Which natural resource was used as a fuel for steam rails? Explain its characteristics. [3 MARKS]

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Solution

Choice : 1 Mark
Characteristics : 2 Marks

Coal was used for running steam rails. It is as hard as stone and is black in colour.

Coal is very shiny, repels moisture and is extremely useful due to its high calorific value of 7,800 – 8,000 kcal/kg.

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