I think Mars environment as it's natural state is not applied for human living but discoverers would be able to start building special permanent bases (named by NASA). It allows to do experiments and observe Martian atmosphere.
It's the lower social standings. While it's highly debatable, poor socio-economic status directly correlates to crime in neighborhoods. This causes drugs, murders, etc. in the neighborhoods.
Just like the national government, the government of the state of new Jersey is separated into three distinct branches, legislative, executive, and judicial.
The human characteristics of a place come from human ideas and actions.
Three examples of human features that you might use to describe a place are: houses, density of population and religion. Human characteristics of place also include land use, language patterns, architecture, and political systems