What two factors explain population decline in eastern europe?

1. The government needs to tackle the causes and effects of population decline, for instance by cutting down on the number of new homes being built.

2. When people move away from villages, jobs, schools, shops and other facilities also disappear. 

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.

The figure is not necessarily a parallelogram because only one diagonal is bisected and only one pair of sides is congruent.