Time line: Stages of joining the European Union

http://timerime.com/es/linea_de_tiempo/1621995/Stages+of+joining+the+European+Union/

World Water cycle

The water cycle describes the presence and movement of water on Earth and above it. The Earth's water is always in motion and constantly changing state from liquid to vapor, ice, and vice versa. The water cycle has been going on for billions of years, life on Earth depends on it

Model of population cycle

World population has grown over time, but hor growth rates have Been Very different through the centuries. There were moments of very slow growth in the Growth Others But it has accelerated. To explain the different stages that occurred on Population Growth, it has formulated the theory of demographic transition. According to this theory if they produce three stages or phases in the development of World Population.

Population density

There are great differences in the distribution of population by hemispheres, continents and development. Of the world's population, estimated at 6900 million in 2012, almost 90% live in the northern hemisphere and 80% between 20 ° and 60 ° N latitude. Only Asia has already 60% of the population. Developed countries have 25% and 75% underdeveloped population. On every continent the population is concentrated in the coastal periphery and below elevation 500 million.

Main migration waves

The main recipients of population are the U.S., Europe, Japan, Australia, Gulf countries and some very specific places in Africa like Gabon and South Africa.

World population distribution

This graph shows the global distribuión population, reflecting a percentage thereof signifativo located in barely 12 countries, representing 62.46% of the world population.

Map of natural increase of world population

This map is distributed by population growth and colors can be deduced that the population growth in the world is greater in poorer countries.