Factors contributing to rural urban migration

Data courtesy of the un development programme 2006-2008 and world bank 2009 the chart above compares measures of development using the hdi and gdp. why might turkey rank lower in the hdi indicator even though it has a high gdp?

Which theory suggested that the earth was once a signle supercontient that gradually that broke up into the contients that we know today

When you cross a time zone going east, what happens to the time