Geography · Hydrology
What is an aquifer?
- 1An underground layer of water-bearing permeable rock, gravel, sand, or silt from which groundwater can be extracted.✓
- 2The upper surface of the zone of saturation.
- 3The lower surface of the saturated zone.
- 4The unsaturated zone located completely beneath the water table.
Correct answer
An underground layer of water-bearing permeable rock, gravel, sand, or silt from which groundwater can be extracted.
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