can be used ti imply all influences other than genetic, including social, economic, and cultural here it is defined as the physical enviroment in 3 categories 1. unaltered(natural), altered, and built environment
floods, earyhquakes, and volcanoes always been part of physical environment
impact on the physical enviroment of humans takes 2 major forms: 1. consumption of resources such as land, food, ater, air, fossil fuels and minerals. 2. waste products as a result of consuption such as air and water pollutants, taxic materials and greenhouse gases
altered enviroment as reflecting the impact of chemiclas, radiation and biological products called pollution
built enviroment includes imapcts of physical enviroment as a result of human construction including injuries and exposures in the home, transporattaion system, and where we work and play