Mineral riches of the earth crust are either extracted or used. For ev – InterviewSolution

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1.	Mineral riches of the earth crust are either extracted or used. For every ton of metal a large amount of slag is discarded which damages the environment. Explain the kind management that we need in this regard. Give any two values attained from this management system.
Answer» Mineral riches of the earth crust are either extracted or used. For every ton of metal a large amount of slag is discarded which damages the environment. Explain the kind management that we need in this regard. Give any two values attained from this management system.

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