100 points
Write essay on Water pollution 100 words.
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Answer :
Water pollution is the main issue affecting human lives in many ways. We all should know the causes, effects and preventive measures of the water pollution to make our lives better. Let your kids participate in some creative activities in their schools and colleges to increase awareness about the water pollution in the society. Here we have provided some easily written essay on water pollution for students. They can select any water pollution essay according to the need and requirement.
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Answer:
Water pollution is the contamination of water bodies, usually as a result of human activities. Water bodies include for example lakes, rivers, oceans, aquifers and groundwater. Water pollution results when contaminantsare introduced into the natural environment. For example, releasing inadequately treated wastewater into natural water bodies can lead to degradation of aquatic ecosystems. In turn, this can lead to public health problems for people living downstream. They may use the same polluted river water for drinking or bathing or irrigation. Water pollution is the leading worldwide cause of death and disease, e.g. due to water-borne diseases.The causes of water pollution include a wide range of chemicals and pathogens as well as physical parameters.
Contaminants may include
organic and inorganic substances. Elevated temperatures can also lead to polluted water. A common cause of thermal pollution is the use of water as a coolant by power plants and industrial manufacturers. Elevated water temperatures decrease oxygen levels, which can kill fish and alter food chaincomposition, reduce species biodiversity, and foster invasion by new
thermophilicspecies.
Water pollution is measured by analysing water samples. Physical, chemical and biological tests can be done. Control of water pollution requires appropriate infrastructure and management plans. The infrastructure may include wastewater treatment plants. Sewage treatment plants and industrial wastewater treatment plants are usually required to protect water bodies from untreated wastewater. Agricultural wastewater treatment for farms, and erosion control from construction sites can also help prevent water pollution. Nature-based solutions are another approach to prevent water pollution.Effective control of urban runoff includes reducing speed and quantity of flow. In the United States, best management practices for water pollutioninclude approaches to reduce the quantity of water and improve water quality.
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