2. 1. All of the living and nonliving things in an area make up the environment.

3. A healthy environment has clean air, water, and land.

4. Think about how you feel when you are sick. What do you feel like doing? Can you do all the things you normally do when you are healthy? Sometimes the environment can get sick too.

5. 2. Dangerous or harmful materials cause pollution when they are added to the environment.

6. 3. Pollution can be caused by natural events or human activities.

7. 4. Waste gases in the air cause air pollution. They create smog or combine with water droplets to create acid rain.

8. 5. Oil spills, fertilizers, and pesticides in oceans and streams can cause water pollution.

9. 6. If trash in landfills is not stored in the right way, it can cause land pollution.

10. 7. One way to protect the environment is to use resources wisely by practicing conservation.

11. 8. Soil conservation includes activities that keep soil healthy for growing plants (or crops).

12. 9. Towns and cities conserve their water supply by cleaning wastewater at sewage treatment plants.

13. 10. People practice water conservation whenever they use water wisely.

14. 11. The 3 R s are main ways to conserve resources.

15. 12. People can conserve resources and reduce waste by using less of something.

16. On the side of your paper, list one way you can reduce the amount of a resource you use. Share with a your partner. Add at least one more idea to your list you think is a good way to reduce the use of a resource.

17. 13. People can reuse things instead of throwing them away after one use.

18. On the side of your paper, list one way you can reuse a resource you use. Share with a your partner. Add at least one more idea to your list you think is a good way to reuse a resource.

19. 14. People conserve when they recycle by making something new from used materials.

20. On the side of your paper, list one way you can recycle a resource you use. Share with a your partner. Add at least one more idea to your list you think is a good way to recycle a resource.