Across
- 3. are controlled by external and internal factors.
- 6. environment in which a particular species of organism lives.
- 8. of carbon dioxide a green house gas.
- 9. organism or of a group of kinds usually a species.
- 11. rain- from soil clay particles and flow into streams and lakes.
- 12. as loss of species ecosystem due to pollution and human activities.
- 13. more than 1,200 animal species and 4700 plant species.
- 14. standards and which are identified as such by a special color.
Down
- 1. such as agriculture croplands or mining activities.
- 2. with negative connotation of accompanying environmental.
- 4. the global warming of earth climate.
- 5. of predators and prey to detect one another.
- 7. of the landscape into smaller and more isolated pieces.
- 8. two thirds of landfill waste is biodegrable
- 10. is the scientific analysis and studying.