Resources which cannot be replaced once they have been used up e.g. coal, gas, oil
Fuel sources that can only be used once and never be replaced. For example gas, oil and coal.
are those in finite supply that cannot be regenerated or renewed by synthesizing the energy of the sun. Such resources include fossil fuels, metals and plastics. Improving the rate of recycling will extend the longevity of these resources.
Natural resources which, once consumed cannot be replaced, eg a tonne of coal once consumed is gone forever in that form.
those natural resources of which only a finite quantity exists; they are not able to be renewed. Includes space and territory.
Natural resources that are not naturally replenished once they have been harvested. Non-renewable resources can be used up completely or else used up to such a degree that it is economically impractical to obtain any more of them. Fossil fuels and metal ores are examples of non-renewable resources.
Those natural resources that are in fixed supply, but whose lifespan can be extended through more efficient or reduced use, reuse or recycling (i.e. minerals, oil, coal).
Natural resources that cannot be replaced after they have been consumed. This term applies particularly to fossil fuels such as coal, oil and natural gas, but also applies to other mineral resources found in the Earth's crust.
Resources that can only be used once, e.g. coal, oil.
Also called fund resources are those which are consumed in use like the fossil fuels (coal, petroleum and natural gas) and which for most purposes must be viewed as finite cf. renewable resources.
A resource whose total quantity does not increase measurable over time, so that each use of the resource diminishes the supply. ( FS People's Glossary of Eco Mgmt Terms)
Stock of such resources are reduced in the process of production and consumption and cannot be replaced.
A non-renewable resource is a natural resource that cannot be re-made, re-grown or regenerated on a scale comparitive to its consumption. Often fossil fuels, such as coal, petroleum, and natural gas are considered non-renewable resources, as they do not naturally re-form at a rate that makes the way we use them sustainable. A renewable resource differs in that it may be used but not used up.