A geological formation holding and transmitting groundwater in volumes adequate for commercial extraction is termed ________.
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Answer: A. Aquifer
Explanation
An aquifer is a permeable geological formation capable of storing and transmitting groundwater. These underground water reservoirs yield adequate volumes for sustainable commercial extraction and use. Porous rock and sediment layers allow water to move freely through the subsurface strata. Hydrogeologists study groundwater movement through confined and unconfined subterranean rock formations. Rainfall infiltrates soil layers to recharge underlying aquifers over extended periods of time. Permeability and porosity are the two critical physical properties defining productive water bearers.
Agricultural irrigation relies heavily on pumped groundwater extracted from deep regional aquifers. Municipal water supplies in arid regions depend entirely on sustainable management of subsurface water. Overextraction can deplete aquifers, leading to land subsidence and severe environmental consequences. Alluvial fans are sediment deposits formed at mountain fronts rather than subterranean water reservoirs. Aquicludes are impermeable geological layers that prevent groundwater movement rather than transmitting it. Albedo measures the reflective surface property of Earth rather than any geological water formation.
- Subject
- Agriculture
- Category
- Forestry
- Topic
- —
- Difficulty
- medium
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