the state of having what you need in order to stay alive, but no more
subsistence
a person who studies changes in numbers of births, marriages, deaths, etc. in an area over a period of time
demographer
the study of the relationships between people living in groups, especially in industrial societies
sociology
someone who scientifically studies humans and their customs, beliefs, and relationships
anthropologist
not easy to find or get
scarce
the process of removing salt from sea water
desalination
existing or happening now, and therefore seeming modern
contemporary
the act of covering something to stop heat, sound, or electricity from escaping or entering
insulation
what adjective means : existing in or as part of a tradition that has been going on for a long time
traditional
what is an adjective used to describe things made by human beings rather than it occuring naturally?
artificial
