Presentation is loading. Please wait.

Presentation is loading. Please wait.

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

Similar presentations


Presentation on theme: "F.Ciangura Population distribution The population of the world is unevenly spread Some places are sparsely populated= few people live in an area Some."— Presentation transcript:

1

2 F.Ciangura

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

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

5 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

6 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 km 2 So, the population density of Malta is: Pop density = people = 404,039 = 1279 persons/ km 2 area 316 F.Ciangura

7 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

8 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

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

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

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

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

13 Polar regions- Antarctica – Sparsely populated Sahara Desert –Sparsely populatedAmazon Forest- Sparsely populated Himalayan Mountains- 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 Too cold for people No soil Snow and ice make communication and settlement very difficult Too cold Very steep slopes make communication and settlement difficult Thin soil F.Ciangura

14

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

16 2007 POPULATION EXPLOSION GRAPH billions F.Ciangura

17 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

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

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

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

21 Push Factors Political fears Unhappy lifeNatural disasters Shortage of food Not enough jobs wars F.Ciangura

22 Pull Factors Better way of lifejobs education Better housing Pleasant environment Family links Medical care exploration F.Ciangura

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

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

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


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

Similar presentations


Ads by Google