Sustainability

4. The non-living parts of an ecosystem.
6. The regions of Earth where living organisms exist.
9. The conversion of Oxygen to Carbon Dioxide or Carbon Dioxide to Oxygen.
11. Most organisms need this for their life processes. Aquatic animals get this from the water.
13. The process of rotting or decaying.
14. Plants and other organisms need this for photosynthesis.
15. The process of one organism consuming another organism for food.
17. The abiotic characteristic that all organisms need to survive. Plants absorb this through their roots.
18. The interaction between members of two difference species that live together in a close association.
19. The process of two or more organisms fighting for the same resource.
20. All organisms need this to grow. An example of this is nitrogen and phosphorus.

1. An ecosystem that is capable of withstanding pressure and giving support to a variety of organisms.
2. The hard part of the Earth’s surface.
3. This contains many nutrients for plants and is also a habitat for many micro-organisms.
5. The process where plants convert sunlight, carbon dioxide, and water into energy.
7. All the water found on Earth, including lakes, oceans, and ground water.
8. The layer of gases above Earth’s surface.
10. The process of burning something.
12. All the interacting parts of a biological community and its environment.
16. The living parts of an ecosystem.