18 How can I estimate how many people are living in a specific territory? 2014-10-12T04:13:13.800

11 What is the minimum distance needed between physically distinct races? 2014-10-02T21:09:01.993

8 What is the difference of population density between the population of a nomadic and a sendentary territory? 2014-10-21T04:29:18.823

6 I want a big city in the desert, what conditions make it possible? 2014-10-31T15:59:53.547

6 I want a big city in a temperate area, what conditons make it possible? 2014-10-31T17:15:43.840

6 I want a big city in a tropical/subtropical climate, what conditons make it possible? 2014-10-31T17:30:23.230