Respuesta :
In many cities, water from shallow wells is not used for drinking water because (B) water near the surfaces is more easily contaminated.
What is contamination?
- Contamination is defined as the presence of a constituent, impurity, or other undesirable factor that spoils corrupts infects, renders unfit, or degrades a material, physical body, natural environment, workplace, or other structure.
- Nitrogen, bleach, salts, pesticides, metals, bacterial toxins, and human or animal medications are examples of chemical pollutants.
- Organisms in water are biological pollutants.
- Microbes and microbiological pollutants are other terms for them.
- Rainfall and snowmelt runoff can contaminate private wells by washing bacteria into the well system or seeping underground.
- Leakage of waste from underground storage tanks and effluent from septic leach fields might reach a water source, resulting in the presence of microorganisms in the well water.
As, leakage of waste from underground storage tanks and effluent from septic leach fields might reach a water source, resulting in the presence of microorganisms in the well water.
Therefore, in many cities, water from shallow wells is not used for drinking water because (B) water near the surfaces is more easily contaminated.
Know more about contamination here:
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