Across
- 5. The increase in concentration of a substance.
- 6. The variety and variability of life on earth.
- 8. A layer of gas that develop a planet.
- 10. Non-living chemical and physical parts of the environment that affect living organisms.
- 12. Provide information regarding the systems internal state and surroundings.
- 13. a resource that is drawn from nature and used with few modifications.
- 15. resource that naturally replenished on a human timescale.
- 16. Technology that utilizes biological systems, living organisms or parts of this to develop or create different products.
Down
- 1. movement focused on protecting species from extinction.
- 2. The introduction of contaminants into the natural environment that causes adverse change.
- 3. The process by which the dissolved mineral salts in water are removed.
- 4. A group or association of populations of two or more different species.
- 7. worldwide sum of all ecosystems.
- 9. Contains all the organisms and the physical environment with which they interact.
- 11. long term weather pattern in a region.
- 14. Everything that we need for survival and well being depends, either directly or indirectly on our natural environment.