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Usually, the terms renewable and non-renewable describe the result of resources which we use. For example, petroleum is non-renewable because once it is burned, it can not be recycled or returned. Even if large quantities exist, the important aspect is that there is less of the resource after it is consumed. We definitely place more importance on non-renewable resources that in the future may become scarce due to consumption and supply limitations.

Land is not directly consumed so we should not classify it as renewable or non-renewable.

However, we use land as farms and these in turn plants consume minerals in the earth such as phosphate and potassium. We add fertilizers to the land to replenish these minerals. Natural gas is used in the production of ammonia, used in fertilizers to supply nitrogen. (See link) Since some of the raw materials used in fertilizers are limited, this is a non-renewable resource. I have included a link from a manufacturer who claims to produce a "renewable fertilizer." In the future, we will likely have to switch to fertilizers which use less non-renewable minerals.

See links.

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14y ago

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