Ключевые слова: air, allergy, apple, biochemical, black, care, chemical, concept, danger, dangerous, disaster, ecofriendly, ecological, ecology, environment, environmental, food, fruit, gas, gasmask, green, hazard, idea, male, man, mask, natural, nature, nuclear, person, plant, pollution, portrait, protection, protective, radiation, radioactive, respirator, safe, safety, spring, substance, suit, survival, toxic, war, warfare,