Ключевые слова: agriculture, air, black, catastrophe, chemical, child, climate, concept, contamination, damage, danger, destruction, dioxide, dirty, disaster, dump, ecology, element, emergency, environment, environmental, factory, gas, girl, global, hazard, hazardous, industrial, industry, mask, nature, nuclear, oil, plant, poison, pollution, power, protect, protection, radiation, radioactive, radioactivity, respirator, risk, safety, smog, smoke, threat, toxic, waste,