natu - non-
- natural
- natural and technical system
- natural boundary
- natural bridge
- natural conditions
- natural contamination
- natural disaster
- natural environment
- natural fertility
- natural flow
- natural focus of disease
- natural gas
- natural hazard
- natural horizon
- natural ice
- natural increase of population
- natural landscape
- natural monument
- natural movement of population
- natural phenomenon
- natural pollution
- natural population growth
- natural potential
- natural purification of the environment
- natural regime
- natural region
- natural resources
- natural resources assessment
- natural resources depletion
- natural resources evaluation
- natural selection
- natural shaft
- natural synoptic period
- natural vegetation
- natural water
- natural-historic park
- naturalization
- nature
- nature conservation
- nature preserve
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