The author mentions all of the following as examples of the effect of humans on the world’s ecosystems EXCEPT______. A. damage to marine ecosystems B. habitat destruction in wetlands C.
The author mentions all of the following as examples of the effect of humans on the world’s ecosystems EXCEPT______
A. damage to marine ecosystems
B. habitat destruction in wetlands
C. the introduction of new varieties of plant species
D. destruction of the tropical rain forests