Mining activities coal deposits natural resources geological formation isolated on transparent background
Contributor: Karina
ID : 1507598107
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Keywords
coal, mining, geologic, formation, activity, resource, sustainability, value, impact, operation, renewable, labor, quality, fossil, pollution, exploration, project, risk, research, production, investment, location, system, analysis, heat, economy, supply, safety, technique, method, underground, raw, clean, charcoal, environmentRelated items
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