Overpopulation and solution

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Overpopulation and solution
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overpopulation

• 1.When does overpopulation occur?
• 2.In what kind of countries does overpopulation
  likely to occur,poor countries or rich countries ?

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overpopulation

• 1.When does overpopulation occur?
• 2.In what kind of countries does overpopulation
  like to occur,poor countries or rich countries ?

When a country does not have enough resources to
support her people
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overpopulation

• 1.When does overpopulation occur?
• 2.In what kind of countries does overpopulation
  likely to occur,poor countries or rich countries
  ?
• Why?

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overpopulation

• 1.When does overpopulation occur?
• 2.In what kind of countries does overpopulation
  like to occur,poor countries or rich countries ?

Poor countries has a rapid population growth and
they cannot provide enough food and jobs for all
the people.
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the problems of overpopulation
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(No Transcript)
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the problems of overpopulation

• Shortage of food
• Shortage of social facilities ,like houses
  ,schools and hospitals.
• Shortage of jobs
• Environmental pollution
• Traffic congestion
• )

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Some solutions to overpopulation

• Since overpopulation results from a large
  population and a shortage of resources,how to
  solve the problems of overpopulation?
• Population growth has to be slowed down.
• Better ways of using resources must be found.

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Can you tell some ways to solve the problems of
overpopulation?

• Family planning
• Migration
• Build more social facilities like houses ,schools
  and hospitals
• Build cities by good plans
• The better ways of using resources
• Improve the level of education
• improve the level of technology
• Protect the natural environments
• Cooperate with other countries and places in
  developing economic.
• Wars

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1.Controlling population growth

• Family planning
• Do you think family planning is a good way to
  control population growth? How many children will
  you have in your future?
• What does family planning encourage people to do ?

to have fewer children to marry later
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2.Migration

• How is the population distributed,evenly or
  unevenly?
• Unevenly
• Usually, what kind of places is overpopulated
  ,crowed areas or less crowded areas?
• crowed areas
• The government try to encourage people to migrate
  from a populated area to a
  populated area.
• (densely ,sparsely)

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3.Produce more food

• Farming Improvements
• In order to produce more food, what kind of
  improvements have been made?

more fertilisers more machines
better seeds better irrigation
conditions
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4.Industrial and trade developments

• Why can industries help to solve overpopulation
  problem?
• Industries can be developed to provide more
  jobs for people.
• It can produce more goods for people to use.
• Why can trade help to solve overpopulation
  problem?
• It can let people use the resources better.
• e.g.

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Advantage of trade
A and B,each have a piece of field of two mu ,
if they plant both wheat and rice, both of them
can get 1200kg foodstuff a year.
If A only plants rice and B only grows wheat,then
change half of what they get,each can get 1300kg
foodstuff a year.
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What is an ideal place?
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Ideal place

• can produce a lot of food
• can get a good job
• large house
• good school and hospital ,etc.
• no traffic congestion
• less pollution

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What should we do?

• study hard
• save energy
• save water and land
• control pollution
• protect the environments
• go to school by bike or on foot.
• find new resources

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Thank you for listening