1. Many farmers harvest their crops in the fall and then let the leftover plant material stay on the ground over winter. How does this help prevent erosion? 2. Discuss five ways human activity has accelerated soil erosion.

3. How do urban areas contribute to soil erosion?

4. What is the connection between poverty and soil erosion in developing countries?

5. What is one way you can prevent soil erosion when you are hiking?

6. How does the United States Superfund Act help control hazardous wastes?

7. What is the difference between corrosive and flammable?

8. Organic farming is a method of growing food crops with natural alternatives to chemical pesticides. How does organic farming help control hazardous wastes?

9. What hazardous wastes are common in ordinary households? What can you do to reduce the impact you make on the environment from the use of hazardous wastes?