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capter 7 geo
geo gilly
Question | Answer |
---|---|
resource | something that is useful to people |
natural resource | a material found in nature that has usefulness and economic value, such as trees, water, minerals |
technology | the use of scientific knowledge and skills for useful, practical purposes to meet the needs and goals of people |
renewable resource | a resource that can be replaced fairly quickly, such as forests and animals |
non-renewable resource | a resource that cannot be replenished once it is used up, such as fossil fuels |
flow resource | a resource that can be used and replenished at the same time, such as a river current or solar energy; it must be used when and where it occurs in nature |
natural system | a balanced network of connected parts |
water cycle | the natural system that creates a renewable supply of fresh water through evaporation, condensation, and precipitation |
groundwater | water that is under the surface of the earth and can be reached only through wells |
Selective cutting | companies select omly mature trees but this takes time and costes them money. |
Shelterwood cutting | companies clear-cut smaller areas in forests where trees are of the same general species and age. They leave small patches untouchedso they can grow back whith is also costly. |
Clear-cutting | companies prefer clear-cutting, claiming it is the cheapest and fastest but it is not very eco-friendly |
continental shelf | the shallow zone of water along the edge of the continents |