Time line: Stages of joining the European Union

http://www.dipity.com/andreblanco/Time-line-Stages-of-joining-the-European-Union

Map of natural increase of world population

This map shows us the natural increase of wold population. We can see that in the richer countries the natural increase is lower than in poorer countries.

Population density

In this map we can see the population density. The population density is the relation between the number of inhabitants and the land area it occupies. It is calculated by dividing the number of the inhabitants by the total area. It expressed as inhabitants per square kilometre (inhabitants/km²).

Model of population cycle

Stage 1 -High Fluctuating (birth rate and death rate very high)

Stage 2- early expanding (birth rate high and death rate falling)

Stage 3 -Late expanding (birth rate starts to fall and death rate continues to fall)

Stage 4 -Low stationary (burth rate and death rate both low. Population steady)

Synoptic chart of the Spanish political system

 I couldn't find any synoptic chart of the Spanish political system in English, but here is another in Spanish.

World population distribution

 The purple zones are the most inhabitated, but the white zones are almost uninabitated.

In this picture we can see the quantities of the population in the different continents in different years.

Main migration waves

Nowadays, the main migration waves are from Middle America to the USA, Argentina, Europe or Australia. But, in the past was the opposite, because there was a lot of money in the Middle America countries (like Mexico, Colombia...) and the countries of Europe didn't had much money,so the population emigrate to these countries.