Introduction to Natural Resources

6. To watch carefully, especially with attention to details
8. Pertaining to a woody plant whose leaves fall at the end of the growing season
10. The zone on the surface of the Earth where all life exists
11. A group of plants growing together or all of the plants and animals of an area
13. The study of the relationships among living things.
14. An occupation or profession followed as one's lifework
16. A substance that cannot be decomposed into other substances
17. A group of similar organisms that are found in the same area; a coexisting and interbreeding group of individuals of the same species in a particular location
18. The total wildlife of an area in the broadest sense, including wild mammals, birds, fish, reptiles, insects, and small animals
21. Of, relating to, or being a method of harvesting or using a resource so that the resource is not depleted or permanently damaged.
22. To watch carefully paying attention to details.

1. Used in ecology to include major life in an area
2. The elements of supply existing in an area that can be used to satisfy the needs of people.
3. The use of a a natural resource in such a way as to minimize waste and maintain the resource in as good a condition as practical
4. An attempt to prevent the use of some natural resource or the modification of an environment keeping it intact.
5. A system of interrelated organisms and their physical and chemical environment
7. In the name of plants and animals, Latin is used
9. The act of using without replacing
12. The nonliving elements of the environment
15. An environment in which a plant or animal lives
19. Pertaining to life; biological
20. The aggregate of plants that grow without cultivation in a given area within a state period of time