THE WORLD OF THE GEOGRAPHY

martes, 18 de diciembre de 2012

Time Line

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http://www.dipity.com/al98albi/

Map of natural increase of world population

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Natural increase  ( RNI ) is the crude birth rate  minus the crude death rate  of a population. Usually developing countries have a posi...

Main migration waves

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The United Nations defines migrant as an individual who has resided in a foreign country for more than one year irrespective of the caus...

World population distribution

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The  world population  is the total number of living humans  on Earth . Six of Earth's seven continents  are permanently inhabited on ...

Model of population cycle

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The model of demographic transition progresses in four stages: Old or preindustrial demographic regime: it is characterized by high m...

Population density

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Population density is the number of people per unit of area usually per square kilometer or mile (which may include or exclude cultiv...

Lugo population pyramid

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