Synoptic chart of th Spanish political system.

Synoptic chart of teterritorial organization of state

Population density .

The density of population estimates the number of inhabitants between the surface of the site. In general it is considered that an area is sparsely populated has a density of 10 inha./km2.  And that is a very populated area if the density exceeds 80 inha./km2.

Model of population cycle.

The model of demographic transition progresses in four stages:
Old or preindustrial demographic regime: it is characterized by high mortality rates and birth rates.
First transition: Keep the high birth rate, but mortality drops.
Second transition: the birth rate begins to decline, but mortality is still down more slowly.
Modern demographic regime: Mortality rates and very low birth.

Population world map.

How as the population evolves?
We study:
The birth rate: is the number of births

Fertility: the estimate of children a woman would have throughout his life

Mortality: The number of deaths
To know the real crecimento a population we have the migration.

The population can be:

 Activa :(16 - 64 years): the employed and who are unemployed.
Inactive: Those who can not work due to sickness and students.

Map of increse of world population.

Causes of Birth:
 As the economy
VirilityThe acess married women into the labor marketThe ingnorancia (thought: Our children are going to die young mui)Psychological causes
  Celivato
According to the policy
Can be prenatal (encourage them to have children) or anti-natalist (amim not to have children).

Spanish population pyramide .

 

A population pyramid is a graph that representing the structure of the population into age groups and sex groups .

To make a population pyramid  need to know the number of its inhabitants, expressed in percentages.

Map of countries of the European Union.

Currently there are 49 independent states in Europe.
Differences:
Depending on their length: the rule is Russia's largest and the smallest Andorra
Depending on your situation: almost all have sea
Depending on their shape: Many are fragmented
According to its population: The most populated is Russia and the least populated is San marino
According to your wealth: wealthier and poorer are  German and Moldova.

Ciclo da auga .

The water is continually moving. Reçber What the name of the water cycle.
1.Evaporación: The heat causes the evaporation of surface water
2.Condesación: The vapor cools affects what gives rise to clouds.
3.Precipitación: Water from the clouds falls as snow, rain or hail.
4. Part of the water fall back to cycle.
5.Unha of the water goes to rivers and lakes seas or oceans.
6. The other part of the water  is  absorbing of the land and  form aquifers.

Listen

Read phonetically

Clima del Mundo

In recent years, scientific research on climate change it will Desarrollado considerably, and will be confirmed that human activities, such as Who of fossil fuels, are probably responsible for her climate change. He is warming ya TENIENDO much measurable consequences and future expected changes therein expensive and far-reaching.

How can we adapt to these changes?
¿Puedo mitigation measures to limit the magnitude of climate change and sustainable impacts. "

In 2007, he intergovernmental group of experts on it Climate Change (IPCC) tries to answer these questions through su final Assessment Report, which brings together the scientific, technical and socio-economic information about it climate change around the El Mundo. Then boil down the essential content of dich evaluation report.

Physical and political map of Europe

Physical map of Europe.

Political map of Europe.