Urban Ecosystems Humans in the Environment. The Human Element Until the 19th century, American Bison roamed the Great Plains by the millions, providing.
Environment What is the environment? The natural environment encompasses all living & and non-living things occurring naturally on Earth.
CHAPTER 9 BIODIVERSITY NATURE’S MEDICINE CABINET Will the bark of an ordinary tree in Samoa become a cure for cancer?
Sewage trearment plant "Kapuściska"
Urban Ecosystems
