What are the main human characteristics of the sahara desert

The desert doesn't contain human features. The desert does have sand dunes, dry valleys, salt flats, and several mountain ranges, some of which are volcanic.

There can be more freedom for them

This would be an open primary. a closed primary people can vote only prior to election day if the party if they are registered. independent voters can not participate. there is not a wide-open primary, but there is a semi-open primary.