Environmental Systems A

3. is the science of naming, defining and classifying groups of biological organisms on the basis of shared characteristics.
4. products that kill insects.
5. the unrestricted growth in many urban areas of housing,
6. the process by which fertile land becomes desert.
7. Divided into two parts to identify an item
10. non-living
12. is a region that has many habitats.
14. human or animal waste
15. a change or the process of change by which an organism
16. give a matte appearance to
17. is the role and position a species has in its environment
19. a place where fluid collects, especially in rock strata or in the body.
20. is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere
22. is the breaking down of rocks, soil, and minerals as well as wood and artificial materials through contact
23. the flow of water after a storm
24. is the physical material at the surface of the earth.

1. an area of land that contains a common set of streams and rivers that all drain into a single larger body of water,
2. any other form of precipitation that is unusually acidic
4. can effect the environment and humans health.
8. products that kill unwanted plants
9. is a single identifiable source of air, water, thermal, noise or light pollution
11. is dangerous or potentially harmful to our health or the environment.
13. is mutual dependence between things.
18. all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.
21. isthe management of complex systems according to a set of rules and trends