Across
- 1. The surroundings in which a person, animal, or plant lives, the natural world of land, sea, air, plants, and animals.
- 3. The absence of pesticides, hormones, synthetic fertilizers and other toxic materials in cultivation.
- 5. The preservation, management, and care of natural and cultural resources.
- 8. Any physical or virtual entity of limited availability, or anything used to help one earn a living.
- 10. Gyre of marine debris particles in the central North Pacific Ocean.
- 15. Largest number of individuals that can survive over time in a given environment.
- 21. A chemical substance used to kill pests, especially insects.
- 22. A state in which opposing forces or influences are balanced.
- 23. Conversion of forested areas to non-forest areas.
- 24. Fuels Any carbon-containing fuel derived from the decomposed remains of prehistoric plants and animals.
- 25. The scientific study of life and the interactions between organisms and their natural environment.
- 26. Made of a substance that will decay relatively quickly as a result of the action between bacteria and break down.
- 27. Energy derived from sources that do not deplete natural resources.
Down
- 2. Energy derived from sources that deplete natural resources.
- 4. A substance that pollutes something, especially water or the atmosphere.
- 6. Capable of being maintained at a steady level without exhausting natural resources or causing ecological damage.
- 7. A product that is made from materials and ingredients found in nature, with little or no human intervention.
- 9. The total amount of greenhouse gases emitted directly and indirectly to support human activities.
- 11. Energy generated in ways that do not deplete natural resources or harm the environment.
- 12. A process to reduce waste generated at its source or to reduce the amount of toxicity from waste or the reuse of materials.
- 13. A resource that controls or limits the growth or survival of an organism.
- 14. Introduction into the environment of a substance or thing that has harmful or poisonous effects.
- 16. Eliminated or discarded as no longer useful or required after the completion of a process.
- 17. The use of natural resources or fuels or the amount of resources or fuels used.
- 18. The biological diversity of life on Earth.
- 19. The design of products or services that are sensitive to environmental issues and achieve greater efficiency.
- 20. The ability to do something well or achieve a desired result without wasted energy or effort.
- 22. A community of organisms and their environment.
