Physics

Physics

I. i coastal areas have a very important roles for human life by providing various ecosystem services of environmental, socio-economic, and cultural values. coastal areas serve for recreational activities, transportation facilities, military training sites, waste disposal, industrial and manufacturing zones, and habitat for wildlife. the attractiveness of coastal regions has led to a significant population growth, and it is expected to continue in the future, particularly in developing countries [1]. in fact, about 60% of the world’s major cities

HIGHLIGHTS who: -Web et al. from the communities in dealing with the pressures of global changeFurthermore, the results must apply

Physics

I. i fluoride is an essential element for the growth and maintenance of bone tissue, and it is an important factor for the prevention of tooth decay. the recommended value of fluorides in drinking water according to the world health organization (who) is between 1.0 and 1.5 mg per day [1]. it also poses a significant health risk if the content exceeds 1.5 mg/day [2]. excessive fluoride ingestion results in inhibition of ameloblasts, change in absorption characteristics, and surface properties of enamel crystals, with the formation of an unsightly porous enamel, which results in the appearance of dental fluorosis [3]-[5]. fluoride is naturally found in the environment (through rock erosion and volcanic emissions, water, soil, plants, and other living organisms) and as a result of certain human activities such as mining and natural phosphate treatment,

HIGHLIGHTS who: -Fluorides et al. from the (UNIVERSITY) have published the Article: I. I Fluoride is an essential element for

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