Ключевые слова: aerial view, agricultural machinery, backhoe, business finance and industry, central europe, charcoal, coal, coal mine, construction industry, construction machinery, conveyor belt, corporate business, crushed, desert area, digging, dirt, dredger, engineering, environment, environmental pollution, europe, excavation machine, expertise, finance, fossil fuel, granite rock, hertfordshire, industry, land, landscape scenery, large, machine part, material, mine, nonrenewable energy, open pit mine, pollution, skill, social issues, the largest hole in europe,