a resource which is not readily replaced by nature when it is used up (Examples of non-renewable resources are iron, copper and nickel.)
A resource that is NOT capable of being naturally restored or replenished; a resource that is exhausted because it has not been replaced (e.g. copper) or because it is used faster than it can be replaced (e.g. oil, coal [what we call fossil fuels]). Their use as material and energy sources leads to depletion of the Earth's reserves and are characterized as such as they do not renew in human relevant periods (They are not being replenished or formed at any significant rate on a human time scale).
A natural resource which can only be used once and cannot be replaced once it is used up, eg coal, oil and natural gas.
A resource whose total quantity does not increase measurably over time, so that each use of the resource diminishes the supply. Old Growth Timber is a non-renewable resource because 200 to 1000 year old stands of trees cannot be readily replaced, especially if management dictates that they will continue to be cut every 60 years.
A natural resource that can not be replaced.
Minerals, oil, gas and coal. Their use as material and energy sources leads to depletion of the Earth's reserves and are characterized that they do not renew in human relevant periods.
a resource that doesn't renew itself on a short-term basis is all
something that can not be replaced
a non-renewable energy resource is one which cannot be replaced as it is used such as coal, oil and their refined derivatives.
substances such as oil, gas, coal, copper and gold, which, once used, cannot be replaced in this geological age.
sources are not replaceable within human timeframes. This includes coal, gas, oil and many mineral resources, like copper.
A natural resource that can not be replenished, such as fossil fuels. Some renewable resources can become non-renewable through overuse.
A resource that is not replaced or only replaced very slowly by natural processes.
Coal, natural gas and oil, and fossil fuels; they are considered a finite resource because of the millions of years they take to form.
A non-renewable energy resource is one that cannot be replaced as it is used. Although fossil fuels, like coal and oil, are in fact fossilized biomass resources, they form at such a slow rate that, in practice, they are non-renewable.
Minerals, oil, gas and coal. Their use as material and energy sources leads to depletion of the Earth's reserves as they do cannot be renewed in human relevant periods of time.
a resource of limited supply that cannot be replaced.