There are several problems: # This aquifer carries water to the oceans, just like above ground rivers do. This cuts off a nutrient and thermal source that ocean life depends on. # This aquifer commonly supports the land above it, so removing the water can create sink holes. # This aquifer commonly supplies multiple wells, so removing water at a new place may change how much and how deep others may have to go, and what contaminants they will see. # This aquifer frequently contains things that are unsafe to be drunk, so additional treament will be necessary. (Water quality usually changes more slowly for groundwater sources, than does a river, so that helps.) # Drawing water from this aquifer draws additional organisms from the vadose zone (and above), which will alter water quality over time. # The hole fails over time (ground settles, casings corrode, other wells lower water table), and additional expense has to be spent on into the future to maintain / repair / abandon it.
Extraction through fracking can contaminate groundwater
Karez systems, while effective for irrigation and water supply in arid regions, have several disadvantages. They require significant initial investment and maintenance, which can be challenging in remote areas. Additionally, karez systems are vulnerable to sedimentation and can become clogged, reducing efficiency over time. Finally, reliance on karez can lead to over-extraction of groundwater, potentially depleting aquifers and harming the local ecosystem.
Groundwater.
Cotton is not as warm or as water repellent as other fabrics.
Because people overly use water for things like bathing, washing dishes, washing the car, etc.
Disadvantage of a tube well: -It is not possible where water-table is low. -If the groundwater is brackish then irrigation is not possible.
An advantage to using fertilizer is a greater crop yield. A disadvantage is the pollutants involved, and potential contamination to humans, via crops and groundwater.
Some disadvantages of groundwater include depletion from overpumping, contamination from pollution or improper waste disposal, and subsidence of land due to excessive extraction. Groundwater depletion can lead to reduced water availability for ecosystems and communities that rely on it for drinking water and agriculture.
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disadvantages
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Some disadvantages of tube wells include: Over extraction of groundwater leading to depletion of water resources. Potential for contamination of groundwater due to pollutants seeping into the aquifer. High initial cost and maintenance requirements. Dependency on a depleting water source in regions experiencing water scarcity.
1.groundwater donot evaporate 2.available throughout the year 3.in arid,semi arid scanty rainfall areas ground water is good choise