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Narrate the difference in requirement of labour in mine while using machines and human labour. |
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Answer» If the mines are not provided with machines, human labour is needed more. If they are provided with machines, vice-versa, e.g : In recent past the coal in mines was taken to lifts in trolleys. At present it is through conveyor belt. Because of the usage of machines, the percentage of recruitments in mines is decreased. |
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