Across
- 5. taking responsibility for the careful management of resources to maintain balance in nature
- 7. Clean Air Act (1963), Clean Water Act (1972)
- 9. air and gases surrounding the Earth
- 10. act of noticing and studying a phenomena or event
- 11. calculation of land and resources required to produce the food consumed
Down
- 1. period of rapid industrial growth in the late 1800s that caused a lot of pollution
- 2. third step of the Scientific Method
- 3. Earth's solid rock
- 4. the ability to meet the needs of the present without compromising the ability of future generations
- 6. water in all of its forms
- 8. the measure of CO^2 and greenhouse gases emitted into the atmosphere due to human activity