______________ provides a better picture of the uneven distribution. 

__________ is calculated as the number of persons per unit area. 

_________ is expressed either in terms of absolute number or in term of percentage. 

There are ______ main processes of change of population. 

___________ have always been higher than death rates. 

___________ is the movement of people from one place to another permanently in search of better opportunities. 

___________ is interpreted as a spontaneous effort to achieve a better balance between population and resources. 

____________ are unemployment, poor living conditions, unpleasant climate, natural disasters, epidemics and socio economic backwards. 

__________ detract people. 

__________ is also called population change.