Across
- 2. A plant that competes with crops.
- 4. Categorization of a species in danger of extirpation or extinction.
- 6. The uniform planting of a single crop over a large area.
- 7. Residual materials that remain after preliminary processing of ore, typically consisting of crushed waste rock contaminated with chemicals used in ore processing.
- 10. The ability of an ecological community to change in response to disturbance but later return to its original state.
- 12. Microscopic floating plants and protists, mainly algae.
- 13. A quality of materials that are poisonous; able to harm health of people or other organisms when a substance is inhaled, ingested, or touched.
- 15. The plate tectonic process by which a tectonic plate carrying dense oceanic crust slides beneath a plate carrying lighter continental crust at a convergent plate boundary.
- 16. The functional role of a species in a community.
- 17. A complex plant-supporting system consisting of disintegrated rock, organic matter, air, water, nutrients, and microorganisms.
- 18. In a cycle, a reservoir that takes in more material than it releases.
- 19. A strategy in which efforts are made ahead of time, to forestall or minimize the anticipated impacts of environmental change.
Down
- 1. A simplified representation of a natural process, which can be physical, graphical, or quantitative and computer-based.
- 3. Land-based.
- 5. The process in which one species (the predator) hunts, tracks, captures, and ultimately kills its prey.
- 8. Describes a diffuse source of pollutants, often consisting of many small sources.
- 9. The physical, chemical, and biological processes that break down rocks and minerals, turning large particles into smaller particles.
- 11. A network of relationships among a group of parts, elements, or components that interact with and influence one another through the exchange of energy, matter, and/or information.
- 14. A toxicant that causes harm to the unborn, resulting in birth defects.