Across
- 4. Nonrenewable resource formed from remains of plants&animals that lived long ago
- 7. Natural resource humans use to make objects/consume as food or drink
- 9. Increase in the amounts of nutrients
- 10. Any natural material used by humans (air, soil, minerals, etc.)
- 12. Pollution coming from a specific site
- 14. Tiny particle of solid suspended in air or water
- 15. Formed when ground-level ozone and vehicle exhaust react in the sunlight
- 20. Resource that forms at a rate that is slower than it is consumed
- 22. Water suitable to drink
- 24. Heating of natural water due to human activity
Down
- 1. Measuring how clean the air is
- 2. Growth of urban areas due to people moving into cities
- 3. Waste or other materials is added to water so it becomes harmful to water dwelling organisms
- 5. The careful and responsible management of a resource
- 6. Resource that can be replaced at the same rate it is consumed
- 8. Natural resource used to generate energy
- 10. Pollution coming from many small sources(Harder to control)
- 11. Precipitation (rain, sleet, snow) containing acids from air pollution
- 13. (Process) human activities and natural processes damage land so it can't support its ecosystem
- 16. Removal of trees and vegetation from an area
- 17. Way by which certain gases in the atmosphere absorbs and reradiates thermal energy
- 18. Wise of natural resources
- 19. (Process)land becomes desertlike and unable to support life
- 21. Body of water that usually forms behind a dam
- 23. Contamination of atmosphere because of humans and natural resources