Ключевые слова: accident, aerial, aircraft, aviation, burn, care, chopper, countryside, damage, danger, descent, destruction, disaster, ecology, emergency, environment, extinguisher, fighting, fire, flame, flight, forest, heat, helicopter, hot, large, loss, medical, mountain, national, natural, nature, outdoor, park, people, prevention, protection, red, rescue, security, sky, smoke, training, transportation, treatment, tree, water, wild, wood,