INVIRONMENT

12345678910111213
Across
  1. 1. acid rain- from soil clay particles and flow into streams and lakes.
  2. 2. more than 1,200 animal species and 4700 plant species.
  3. 3. is the scientific analysis and studying.
  4. 7. organism or of a group of kinds usually a species.
  5. 10. with negative connotation of accompanying environmental.
  6. 12. forest areas across the world that are lost other uses such as agriculture croplands or mining activities.
  7. 13. as loss of species ecosystem due to pollution and human activities.
Down
  1. 1. ethanol-emission of carbon dioxide a green house gas.
  2. 2. two thirds of landfill waste is biodegrable
  3. 4. environment in which a particular species of organism lives.
  4. 5. standards and which are identified as such by a special color.
  5. 6. of the landscape into smaller and more isolated pieces.
  6. 8. the global warming of earth climate.
  7. 9. of predators and prey to detect one another.
  8. 11. are controlled by external and internal factors.