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A sustainable resource is a resource that is used up at the same speed that it is renewed. Wood can be a sustainable resource if the trees are harvested at the same rate as new trees mature. Wind is a sustainable resource as the wind is not "used" up. Solar and hydroelectric power can be considered sustainable. Oil, natural gas, minerals taken from the earth do not regenerate and are non-sustainable. Fish stocks can be renewed and can be used in a sustainable fashion but are presently being used at a greater rate than they are being renewed and are considered non-sustainable.
sustainability increases
rate of renewal
According to About.com, the natural increase in Germany is -0.2% and they have a zero rate of growth.
New Jersey's most important non-renewable resources are fossil fuels and natural gas. A non-renewable resource is a resource that does not renew itself at a sufficient rate for sustainable economic extraction in meaningful human time-frames.
oxygen
The resource will run out.
It is called nonrenewable :)
Natural resources, such as coal or oil. These are formed over immense periods of time. Other resources, such as wood, can be grown again relativly quickly, so consumption can be moderated to the new growth rate ensuring a sustainable resource.
Silver is classified as a nonrenewable natural resource. It is extracted from the earth's crust through mining processes, and its supply is limited. While new silver deposits may be discovered, the rate at which they can be replenished is much slower than the rate at which silver is consumed.
A non-renewable resource is a natural resource which cannot be produced, grown, generated, or used on a scale which can sustain its consumption rate. These resources often exist in a fixed amount, or are consumed much faster than nature can create them
Increased Population
it's renewable, because it is produced at a faster or same rate as it is consumed!
A resource that can't be used again! Nonrenewable resources are resources which take thousands of years to form, like coal, oil, natural gas, uranium etc. Any natural resource that cannot be remade or reproduced once it is used up is 'non-renewable'. It means that something can't be used again.
wind; solar
No. A 'renewable resource' is a resource replaced by natural processes at a rate comparable or faster than its rate of consumption. Since chocolate is not replaced by a natural process it cannot be a renewable resource. Answer Yes. Chocolate comes from cocoa plants and plants are generally considered to be a renewable resource. We could plant enough cocoa trees to replace what is harvested. Thereby ensuring we have a constantly renewable source of chocolate.Rebuttal to second answer:Except that chocolate is a MANUFACTURED product, therefore CANNOT be a renewable resource. Ok. The above answerer is using a very narrow definiton of "renewable". It can also apply to commodities. For example: ethanol from sugar cane is a manufactured product. Ethanol fuel that can be used to run cars is considered to be a renewable energy source if it is grown sustainably. So we can consider that plant products such as chocolate are renewable if managed correctly.
using solar energy instead of natural gas to heat water