Ключевые слова: above, activity, aerial, big, bird, climate, coal, construction, copper, copter, danger, deep, dirt, dirty, dron, drone, excavation, excavator, exploration, eye, factory, geologic, geology, gold, grey, hole, huge, industrial, industry, iron, landscape, machinery, material, mine, mineral, petroleum, pit, poland, resource, sand, sandpit, sandy, soil, source, stone, technology, yellow,