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प्रश्न
State two advantages of coal as a source of power.
टीपा लिहा
उत्तर
The main advantages of coal are the following:
- Coal is used to power machinery, trains, ships, and dynamos.
- Coal is used to produce iron and steel.
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पाठ 12: Conventional Sources of Energy - EXERCISES [पृष्ठ १४३]
