Chapter 1- Population Flashcards
What is the current population?
7.7 billion
What are demographers?
People who study human population
Whta does ‘exponentially’/ ‘population explosion’ mean?
Thet the rate of growth has become increasingly high
What does carrying capacity mean?
The amount of people the resources of a country can support
What does optimum population mean?
When people and resources are equal (unlikely)
What is over population?
When there are more people than resources in a country
What is under population?
When there are less people than resources in a country
What are examples of overpopulated countries?
China, india, USA,
What are examples of underpopulated countries?
Australia, Russia, Canada
What are causes of overpopulation?
High life expectancy Immigration Population policies Flat land Fertile soil Close to coast High birth rate Mild climate
What are causes of underpopulation?
War Immigration policies Harsh climate Uneven land Far from coast Poor soil Isolated Low birth rate
What are concequences of overpopulation?
Traffic, few jobs, overfarming, famine, shanty towns, no education, deforestation, pollution, no resources
What are the concequences of underpopulation?
No workers, no exports, no services, no community, isolation, no tourism
What is Australia’s population?
23 million
What is Australia’s land area
Over 7.6 million km2
