Across
- 2. a naturally occurring material or organism that supports life and can reproduce themselves or can be reproduced by human efforts.
- 3. the process of humans and nature existing in productive harmony, which permits fulfilling the social, economic and other requirements of present and future generations.
- 5. a large area of land covered with trees and undergrowth
- 8. inorganic compounds occurring naturally in the earth and having a distinctive structure.
- 13. the maximum population level for which an ecosystem can provide ongoing food and shelter.
- 14. the layer of natural materials on the earth’s surface, containing both organic and inorganic materials, that is capable of supporting life.
- 15. all the non-domesticated animals, either game or non-game.
Down
- 1. a partially self-contained environmental and living system, such as a prairie, wetland, woodland, mountain, or tundra.
- 4. a set of overlapping food chains that contain sequences of organisms, each of which provides a source of nutrients for the next organisms in the chain.
- 6. colorless, transparent, naturally occurring compound made of hydrogen and oxygen.
- 7. is the act of taming or controlling wild plant and animal species and producing them for human benefit.
- 9. any species that is non-native or alien to an ecosystem and whose introduction causes or is likely to cause economic or environmental harm.
- 10. all the factors and surroundings that affect a living organism.
- 11. limited resources that exist in fixed quantities that cannot be replaced or reproduced.
- 12. any energy-producing material created by the decomposition of dead plants and animals.