Middle East and Africa

Climates of the Middle East & Africa.

Population of the Middle East & Africa.

Middle East & Africa: Religion.

Middle East & Africa: Language

Population pyramids

Pyramid A

• typical of developing countries
• high death rate
• high birth rate
• low life expectancy

Pyramid B

• typical of developed countries
• low death rate
• lower birth rate
• longer life expectancy

Questions:

• Interpret the age distribution diagram above.  
• Which shows a population that is increasing rapidly? 
• Which is decreasing? 
• Which is stable?  
• Why?

Changes in population size

 

The size of the population in areas is continuously changing.

These changes are caused by different factors:

1 - Births and deaths are natural causes of population change. 

Births - usually measured using the birth rate (number of live births per 1,000 of the population per year). Deaths - usually measured using the death rate (number of deaths per 1,000 of the population per year). The difference between the birth rate and the death rate of a country or place is called the natural increase. The natural increase is calculated by subtracting the death rate from the birth rate.

natural increase = birth rate - death rate

2 – Migration is a cause of population change. Migration is the movement of people within or between areas. Migration occurs at all scale levels.

• An emigrant is a person who leaves one country to settle permanently in another. Emigration describes the move relative to the departure.

• An immigrant is a person who enters a country to settle permanently in another. Immigration describes the move relative to the point of destination.