| natural(adjective, feature, characteristic, detail) |
| state(noun, condition, situation) |
| act of god(expression, nature, world, phenomenon) |
| biologic(adjective, feature, characteristic, detail) |
| nature-friendly(adjective, feature, characteristic, detail) |
| organic(adjective, feature, characteristic, detail) |
| biological(adjective, feature, state, characteristic, detail) |
| climate hazard(expression, nature, world, phenomenon) |
| geological(adjective, feature, state, phenomenon) |
| green(adjective, feature, characteristic, detail) |
| inherent(adjective, feature, characteristic, detail) |
| meteorological hazard(expression, nature, world, phenomenon) |
| optical(adjective, feature, state, phenomenon) |
| physical(adjective, feature, state, phenomenon) |
| vital(adjective, feature, characteristic, detail) |
| weather(noun, setting, surroundings, milieu, environs) |
| ecological(adjective, feature, characteristic, detail) |
| air(noun, setting, surroundings, milieu, environs) |
| ambient(noun, setting, milieu, environs, ambience) |
| basic(adjective, feature, characteristic, detail) |