POPULATION

WHAT IS POPULATION?

All the people who live in the same country or place.

HOW MANY PEOPLE ARE THERE IN THE

WORLD?

EVOLUTION OF THE POPULATION IN

DEVELOPED COUNTRIES

Global population has not growth at the same pace.

EVOLUTION OF THE POPULATION IN

DEVELOPED COUNTRIES

Until the 19th century, population growth was very

slow. A lot of people were born but a lot of them died

from hunger and epidemics.

EVOLUTION OF THE POPULATION IN

DEVELOPED COUNTRIES

From the 19th century onwards, the population started to grow faster,

because of advances in sanitation and health care. Moreover,

technological improvements in agriculture and industry produced

more food.

In the first half of the 20th century there was a demographic explosion.

EVOLUTION OF THE POPULATION IN

DEVELOPED COUNTRIES

After the mid-20th century, population growth started to

decrease in richer countries, because less people were born and

less people died.

EVOLUTION OF THE POPULATION IN

DEVELOPED COUNTRIES

Nowadays, population growth in developed countries is very low

or even negative (when there are more deaths than births).

EVOLUTION OF THE POPULATION IN

LESS DEVELOPED COUNTRIES

However, nowadays the populations of poorer countries

continue to grow rapidly.

EVOLUTION OF THE WORLD POPULATION

Now it´s your turn!

Try to explain the

graph with your own

words.

It has been estimated that by the end of the 21st

century, the world will have about 12 bilion

inhabitants.

Explain the

changes in

the line

graph

Page 47:

Ex. 1 and 4

Page 56

Ex, 1

POPULATION DENSITY

The distribution of global population is not equal.

POPULATION DENSITY

What is population density?

Do exercise 2 on page 47

Do exercise 2 on page 56

POPULATION DENSITY

Interprete

the map key.

POPULATION DENSITY

POPULATION DENSITY

The distribution of global population is not equal.

Interprete

the map and

the graph.

POPULATION DENSITY

Page 47:

Ex. 3, 4, 5 and 6