Renewable resources are sometimes living resources,(trees and soil, for example), which can restock (renew) themselves if used sustainably and not over- harvested. There are also non-living resources that are renewable, such as hydroelectric power, solar power, biomass fuel, and wind power.
If renewable resources are consumed at a rate above their natural rate of replacement, the standing stock will diminish and eventually run out. The rate of sustainable use of a renewable resource is determined by the replacement rate and amount of standing stock of that particular resource. Non-living renewable natural resources include dirt and water.
Flow renewable resources are very much like renewable resources, only they do not need regeneration, unlike renewable resources. Flow renewable resources include renewable energy sources such as the following renewable power sources: solar, geothermal, landfill gas, tides and wind.
Resources can also be classified on the basis of their origin as biotic and abiotic. Biotic resources are derived from living organisms. Abiotic resources are derived from the non-living world (e.g., land, water, and air). Mineral and power resources can be abiotic natural resources.
Friday, March 20, 2009
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