2009年3月4日 星期三

1.3.1 - 4

On a human time scale, a renewable resource can be replenished fairly rapidly (from hours to decades) through natural processes as long as it is not used up faster than it is renewed.


在人類的時間標度,可再生資源可以較快補充(從幾小時到幾十年)憑藉自然過程,只要它再生的速度比用盡的快速。

Examples are forests, grasslands, fisheries, fresh water, fresh air, and fertile soil.

例如:森林、草原、漁場,淡水,新鮮的空氣和肥沃的土壤.

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