Renewable resourse
A natural resource that can be replaced at the same rate at which the resource is consumed.
Nonrenewable resource
A resource that forms at a rate that is much slower than the rate at which it is consumed.
Overpopulation
The presence of too many individuals in an area for the available resources.
Biodiversity
The number and variety of organisms in a given area during a specific period of time.
Conservation
The preservation and wise use of natural resources.
Recycling
The process of recovering valuable or useful materials from waste or scrap.
Pollution
An unwanted change in the environment caused by substances or forms of energy.