Uploaded on 2016-04-14 by luanlb

Raw materials: Wood **b. Regulating services** Erosion prevention and maintenance of soil fertility: This city has a lot of hills. This is a big problem, because a lot of people live in hills, cutting off trees and vegetation. It can bring the erosion and the soil can become infertile. **c. Habitat or Supporting services:** Habitats for species: plant and animal **d. Cultural services:** Recreation and mental and physical health: running, biking. ![][1] [1]: https://edxuploads.s3.amazonaws.com/14606566792712886.jpg