Question

explain how physical environment is decided by social environment

Answer 1

the social environment refers to the immediate physical and social setting in which people live or in which something happens or develop

Answer 2

Physical environments is not decided by social environment, rather social environment is decided by physical environment.  

Type of food, types of dress, and types of energy used, occupation of the locales in general, and type of shelter or house used by the local residents are the social factors, which are grossly influenced by the physical environment of a location.