Across
- 5. Height above a given level
- 7. Things that are produced by nature
- 8. The growing of plants
- 9. The ability to sustain, or maintain,our current level of natural resources so that we may rely on them in the future
- 13. The watering of farm land with water taken from the reservoirs of rivers
- 14. The humans in this place and those objects that man has created, including city and country boundaries
- 15. A method of human communication
Down
- 1. A natural event
- 2. Lowest point on Earth
- 3. A measurement of population
- 4. Features that naturally occurs in a region
- 6. The belief and worship of a superhuman
- 10. Long term pattern of weather
- 11. The surroundings in which a person or animals lives
- 12. Not plentiful