environment
the surroundings or conditions in which a person, animal, or plant lives or operates.
Environmental Science
The study of the natural processes that occur in the environment and how humans can affect them.
Environmentalism
an organized movement of concerned citizens, businesses, and government agencies designed to protect and improve people's current and future living environment
natural resources
Materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain
nonrenewable resource
A natural resource that is not replaced in a useful time frame.
sustainable
able to meet the current demand for a resource without depleting the future supply
fossil fuels
coal, oil, natural gas
ecological footprint
The amount of biologically productive land and water needed to support a person or population.
renewable resource
Any natural resource (as wood or solar energy) that can be replenished naturally with the passage of time