Across
- 2. release of harmful materials into the environment
- 5. all the water on earth
- 6. the envelope of gases surrounding the earth or another planet
- 8. the variety of life in the world or in a particular habitat or ecosystem
- 9. the environment's provision of raw materials and natural resources such as food
- 10. occurs when natural or human induced processes decrease the future ability of land to support crops and livestock
- 11. the part of earth in which life exists including land, water, and air or atmosphere
Down
- 1. an increase in the average temperature on the earth's atmosphere
- 3. hazardous waste causing danger from chemicals and infectious organisms
- 4. the solid, outer layer of the earth that consists of the crust and the rigid upper part of the mantle
- 5. the natural home or environment of an animal, plant or any other organism
- 7. a term that typically describes a species that no longer has any know living individuals