Regard of the typical structure from population characteristics has Jut changes study which Happened in Type ratio , its importance To Limitation of population Feature for societies in past and Future , because it Limited in origin To needs knowledge for Male , Female and social , Economic Roles which done Each other of the life .
It has direct Effect on birth , death , marriage , migration and professional distribution , it has Great role in form foundation of the group, speed of it move .
Therefore was purpose of research is change study in type Ratio of population of An bar province for period ( 1977 – 2007) .
How contrast between Administrative untes and age stage in province , during study period , know ledge of directions and it difference about type Ratio in every of Iraq and Ratio in stationary countries , what causes which retired for biological factors and other Effected about historical events , which lived our populate society, Its port of Iraqi populate society . |