natural resource
Anything that occurs naturally in the environment and is used by people
pollution
The contamination of Earth’s land, water, or air
renewable resource
is either always available or is naturally replaced in a relatively short time
nonrenewable resources
resources that are not replaced in a useful time frame
ecological footprint
The amount of land and water that individuals use to meet their resource needs and absorb the waste they produce
conservation
the practice of managing the use of resources wisely so the resources last longer