Natural resources.
The natural resources serve to produce energy and food all over the world.
The population in the land was advancing of the following ways:
- Roman Empire: She was a diminished population.
-Golden age of India: it did not grow
.-Mayan Empire.
-Rise of Islam: the population Increased a bit in Europe.
-Viking conquests.
-Crusades: North America began to grow, and Asia started having overcrowding.
-Mongols in China: The Chinese population diminished a bit.
-Black plage: It reduced 75 % of the European population.
-New World: The European population increased but the South American diminished.
- colonial American: In America it increased a bit.
- manufacturer age: the world population Grew very much.
-World wars: There was a massive increase of the population.
-Modern Medicine: It increased the hygiene, which did that the population was increasing.
-Information age: There was an aumnto on native of the population. In the last 15 years the population increased become insolent and disproportionately.