Water is a very reactive chemical compound. Explain how chemical reactions between ground water and minerals affect drinking-water quality, rock formation, mineral-resource formation, and development of landscapes
In this short essay, explain why ground-water chemistry tends to be very different from surface-water chemistry.
What will be an ideal response?
Ground-water chemistry tends to be different from surface-water chemistry because ground water that flows slowly underground interacts with the minerals in the aquifer materials. Ions release into the water where minerals dissolve. Changes in ground-water chemistry, temperature, or both cause mineral precipitation that cements sedimentary rocks, clogs water pipes, and forms some economically important mineral deposits of lead and zinc. Karst topography forms where ground water dissolves minerals in limestone and evaporite. Dissolution opens up spaces beneath the surface, including caverns, and causes the collapse of depressions, called sinkholes, that may capture surface drainage and make it flow underground.
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Mathematical location is also known as ________.
A. vernacular location B. absolute location C. physical location D. relative location
What is the main way groundwater accumulates?
A. Magma releases water as part of the hydrologic cycle. B. Precipitation and surface water infiltrate through the upper layers of soil. C. Seawater in the oceans loses its salt via the process of saltation. D. Plants release water and carbon dioxide through their roots.
________ is an unusual mixture of ice and methane.
A. Gas hydrate B. Pumice C. Distillate D. Condensate E. Oil sand
Where do dense water masses form?
A) ?near polar continental shelves B) ?along the equatorial zone C) ?in enclosed basins where river runoff is great D) ?along active continental margins