Ключевые слова: biochemistry, biohazard, biological, chemical, chemistry, countryside, danger, defense, dirt, dirty, disaster, environment, gas, ground, hazard, hazmat, heap, human, industrial, industry, landscape, lime pit, male, man, mask, men, military, open pit mine, pit, poison, pollution, power, protection, protective, quarry, radiation, radioactive, resource, respirator, safety, scientist, smoke, stone, suit, survival, toxic, uniform, yellow,