Across
- 4. The contamination of water sources that make the water unusable
- 7. The thinning of the ozone layer present in the upper atmosphere due to the use of chlorofluorocarbons (CFCs).
- 8. Species of animals that are at risk of extinction because the of loss of their habitat and/or sudden decrease of population
- 9. Results in the extraction of minerals from the earth’s core.
- 10. When forests are cleared by cutting trees and not replanting them.
Down
- 1. Solid particles and gasses in the air that are harmful or poisonous
- 2. The decline or disappearance of biological diversity
- 3. Liquid and solid waste from farming activities such as runoff from fertilizers, pesticides, feedlots, and erosion from over plowing fields.
- 5. A change in the average conditions in a region over a 30 year average of time.
- 6. Creation of radioactive wastes