Ключевые слова: adult, big, dig, dust, earth, ecology, energy, eruption, excavation, extraction, geology, heavy, hill, hispanic, huge, industrial, industry, latin, man, material, mexico, mine, miner, mineral, moving, one, open, people, pit, power, production, puebla, quarries, rock, rough, stack, stationary, stone, technology, terrain, volcanic, volcano, work, working,