Environmental

5. is the relationship that benefits at least one other biotic factor.
6. is the area of Earth that supports life
11. is the ranking of species into successive levels, where each feeds on the one below
13. is all the practices used to maintain our ability to produce food, fiber and shelter.
14. is the practices used to protect and improve wildlife by understanding the habitat needs
15. is all the factors that affect a living thing – everything external to a plant or animal.
18. is the most important natural resource.
19. is pollution from a readily identifiable source, such as factory
20. are those that can be replaced when they are used

1. are the naturally occurring thing that support, life, provide fuel, or are used in other ways by humans.
2. is the result of substances that spoil our environment
3. is the all the parts of a particular environment form
4. are the plants and animals that haven’t been domesticated
7. is the washing or wearing away of soil.
8. is the outer layer of the earth’s surface
9. is a substance that contains poison or has the potential to poison plants and animals
10. are all the nonliving parts of an ecosystem
12. is the area where a plant or animal lives in natural conditions
16. is pollution from many sources that may not be individually identifiable.
17. are all the living parts of an ecosystem
21. is the function or role of a living thing within its habitat