Ключевые слова: artificial, background, business, commodity, copper, desert, dig, disaster, dump, ecology, environmental, excavation, excavator, extraction, factory, fertilizer, garbage, geology, heavy, hill, industrial, landscape, machine, machinery, manufacturing, material, mine, mineral, mining, mound, open, ore, output, outside, pollution, potassium, processing, production, rock, salt, sand, sky, sodium, station, stockpile, structure, technology, terrace, waste,