This 24-page downloadable presentation was created and gifted to you by longtime NEU faculty member, and science curriculum advisor, Gail Bennington. It was designed for her high school students in New York, USA, but you may also find it interesting.
The teaching focuses on natural ecosystems as resources with conservation and protection at the fore. This powerpoint PDF is Chapter 12, excerpted from her full science course exploring the environmental sciences:
Ecosystems as Resources_Gail Bennington_Powerpt Presentation
Note: See also downloadable PDF Chapter 11, Wild Species: Biodiversity and Protection:
Biodiversity Presentation_Gail Bennington_High School Science