1. Resources

3. Identify different natural resources using the photograph at the right. Explain how humans have used each resource and then identify some negative impacts of this use

4. Resource : Water River: water –Fishing, –irrigation –Recreation –Domestic/industrial –Waste –transport Negative: –Flooding –Pollution, leached chemicals from farming, urban and industrial waste, acid rain, oil from cars and boats –Impact on fish, dams (ladders) habitat destruction –Delta, less silt

5. Resource : Forests Housing, building material Jobs, taxes, good for the economy Recreational, parks Buffer zone, remove CO2 add O2 Stabilize soil, reduce runoff, filter water Cool urban area, climate

6. Trees cut for human use Soil erosion Increased run off Silt from runoff enters the river, impact on aquatic life

7. Resource : Soil, Flood Plain Agricultural use Roads Railroads Recreational Residential Industrial and commercial dams

8. Negative Impacts Irrigation, fertilizers and pesticides Salinization and pesticides enter ground water and adjacent river ecosystem Leads to soil degradation Oils, salts and other toxic substances enter air, soil and river system