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HC Vocab.
Using natural resources
| Term | Definition |
|---|---|
| aquifer | an underground layer of porous rock or other material that is permeated with water |
| conservation | prevention of wasteful use of a resource |
| groundwater | water that fills spaces in porous rock, sediment and soil below the level of the water table |
| greenhouse gases | gas in an atmosphere that absorbs and emits radiation within the thermal infrared range |
| per-capita | average per person |
| pollutant | a substance or energy introduced into the environment that has undesired effects |
| population density | the number of people living per unit of an area |
| surface water | the water that flows over Earth’s surface |