Across
- 2. variety at the genetic, species, and ecosystem levels on Earth
- 4. the act of protecting Earth's resources and species for the future
- 5. animal live present in an area or time period
- 6. the dying out of a species or group
- 8. the study of interactions among organisms and between organisms and their environment
- 10. repurposing materials instead of going to a landfill
- 15. something that has been released into the air, water, etc.
- 16. the removal of plant life for human use of land
- 17. an organism that carries pollen from plant to plant
- 18. supplies, aids, or services that benefit organisms
- 20. the act of keeping something as it is, protecting it from loss or danger
Down
- 1. the ability to be maintained at a certain rate or level
- 3. plant live present in an area or time period
- 7. an individual living thing that has the necessary parts to conduct life processes
- 9. substances that are harmful and put out into the environment
- 11. something that is able to be used more than once
- 12. materials that will break down on their own over time
- 13. the home or environment of an organism
- 14. materials and substances that will naturally replenish over time
- 19. removing species from their natural habitats faster than the species can naturally recover