1. Population
F.Ciangura

2. Population distribution
The population of the world is unevenly spread
Some places are
densely populated =
crowded
Some places are
sparsely
populated=
few people live in an area
F.Ciangura

3. World population density
North America
Europe
Asia
Africa
South America
Australia
F.Ciangura

4. In the past most people used to live in the countryside.
Today more than half of the world’s population lives
in cities.
Cities provide housing, jobs, medical care,
education and entertainment.
The fastest growing cities are found in poorer countries
like Mexico City, Sao Paolo and Lima.
If you are connected to the internet click on the following link to see how
cities have grown in time
F.Ciangura

5. How to calculate the population density of a place?
Population density = the number of people living in an area
the area
e.g. the Population of Malta is 404,039 and it is 316 km2
So, the population density of Malta is:
Pop density = people = ,039 = persons/ km2
area
F.Ciangura

6. has the highest population density in Malta because many people live
The Grand Harbour Area
has the highest population density
in Malta because many people live
close together in a small area.
Problems of high population
density include:
Traffic jams,
Loss of natural environment,
Pollution,
Eye sores,
Stress,
Loss of wildlife,
Accidents.
F.Ciangura

7. Maltese Population Density 1995 Local Councils
Legend (persons per km2)
The Grand Harbour Area has the highest population
Density because many people live here. There are many
jobs, flat gentle-sloping land, good transport links, and near the main harbours.
F.Ciangura

8. What affects where we live?
NEGATIVE FACTORS – sparse population
Desert
Dry-
no rain and
no rivers
Dense Forest
No jobs
No industry
Few raw
materials
Poor soils
Steep, cold mountains
F.Ciangura

9. POSITIVE FACTORS – dense population
Gentle sloping hills
Near a river
jobs
Good communications
Good soil
Near port
Pleasant climate
Food supply
Open grasslands
Raw materials
F.Ciangura

10. Where do we live? F.Ciangura Western Europe- Densely populated
Himalayan
Mountains –
Sparsely
populated
Sahara
Desert –
Sparsely
populated
Bangladesh-
Densely populated
Amazon Forest-
Sparsely populated
Polar regions- Antarctica – Sparsely populated
F.Ciangura

11. Western Europe- Densely populated
Low lying
Pleasant climate
Good water supply
Good soil for farming
Good communications and
many resources for industry
Bangladesh- Densely populated
Flat land
Rich, fertile soil
Hot and wet
Very good farming
F.Ciangura

12. F.Ciangura Sahara Desert –Sparsely populated
Amazon Forest- Sparsely populated
Too hot and dry for people
Dry soil
Sand makes communications difficult
Too hot and wet for people
Dense forest makes communications
and settlement difficult
Polar regions- Antarctica –
Sparsely populated
Himalayan Mountains- Sparsely
populated
Too cold
Very steep slopes make communication and settlement difficult
Thin soil
Too cold for people
No soil
Snow and ice make communication
and settlement very difficult
F.Ciangura

13. F.Ciangura

14. How does the population change?
Birth rate more than
death rate
Birth rate less than
death rate
Birth rate same as
death rate
Population increase
Population stays the same
Population decrease
F.Ciangura

15. POPULATION EXPLOSION GRAPH
billions
POPULATION EXPLOSION GRAPH
2007
F.Ciangura

16. High birth rate and high death rate Population stays the same
POPULATION EXPLOSION GRAPH
High birth rate and high death rate
Population stays the same
High birth rate
but death rate is
low due to
improved living
conditions,
medicines,
education, food
Population
Increases
F.Ciangura

17. Migration Types of migration Migration is when people move home
a) RURAL–TO–URBAN MIGRATION
Leaving the countryside to go to work and live in the city
b) INTERNAL MIGRATION
e.g. leaving Floriana to go to live in Qawra
(in the same country)
F.Ciangura

18. c) INTERNATIONAL MIGRATION
Moving from one country to another
e.g. From Malta to Australia
d) SEASONAL / TEMPORARY MIGRATION
Changing home for some time only .
E.g. going to live at Bugibba only in summer
F.Ciangura

19. Why do people migrate?
Pull Factors
Push Factors
F.Ciangura

20. Push Factors Unhappy life Natural disasters Not enough jobs
Shortage of food
wars
Push Factors
Political fears
F.Ciangura

21. Pull Factors Pleasant environment education Better housing
Family links
jobs
Better way of life
exploration
Medical
care
F.Ciangura

22. What is the American Dream ?
When people go to America
to find better jobs, education
medical care, entertainment,
more freedom and opportunities.
F.Ciangura

23. Many Mexicans migrate to USA to look for jobs. They are mostly
Seasonal migrants
since many go to USA
to pick fruit.
F.Ciangura

24. What are the effects of migration?
Good effects
Bad effects
Cause problems
Migrants take the jobs
of local people
Racism
Vandalism
They use the country’s
health and social services
Migrants do jobs
that locals do not want
to do
Many migrants are
willing to work long hours
Mix ideas
Mix cultures
F.Ciangura