1. Chapter 20 Earth Science Our Impact on Land

2. Words to Know – Section 1 Population Impact on the Environment population parrying capacity pollutant

3. total number of individuals of one species occupying the same area population

4. maximum number of individuals of a given species that the environment will support carrying capacity

5. any substance that contaminates the environment pollutant

6. Words to Know – Section 2 Using Land stream discharge sanitary landfill hazardous waste enzyme

7. volume of water that flows past a specific point per unit of time stream discharge

8. area where garbage is deposited and covered with soil and that is designed to prevent contamination of land and water sanitary landfill

9. Personal opinion. Hazardous waste

10. substance that causes chemical reactions to happen more quickly enzyme

11. Words to Know – Section 2 Conserving Resources conservation composting recycling

12. careful use of resources to reduce damage to the environment through such methods as composting and recycling materials conservation

13. conservation method in which yard wastes such as cut grass, pulled weeds, and raked leaves are left to decompose gradually composting

14. conservation method in which old materials are processed to make new ones recycling