The nation-state concept originated in which of the following countries?
a. france
b. united states
c. japan
d. england

What would happen to kenya's pyramid if there was a rapid decline in its: a) birth rate b) death rate

What is the difference between emigrate and immigrate? ?

According to the earth science reference tables, during which geologic time period were the continents of north america,south america, and africa closest together?