It shall be the purpose of the Sharon Zoning Bylaw ("this bylaw") to lessen congestion in the streets; to conserve health, to secure safety from fire, flood, panic and other dangers; to provide adequate light and air; to prevent overcrowding of land; to avoid undue concentration of population; to encourage housing for all persons of all income levels; to facilitate the adequate provision of transportation, water supply, drainage, sewerage, schools, open parks, open space and other public requirements; to conserve natural resources and prevent blight and pollution of the environment; to encourage the most appropriate use of land throughout the Town, including consideration of the recommendations of the Master Plan, if any, adopted by the Sharon Planning Board and the Comprehensive Plan, if any, of the Metropolitan Area Planning Council; and to preserve and increase amenities and to restrict, prohibit, permit or regulate the uses of bodies of water, including watercourses, and the development of the natural, scenic and aesthetic qualities of the community.