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Carrying capacity
the maximum population that the resources in a given environment can support
when did the population reach 1 billion
1804
Population explosion
Highest ever global population rate. Early to mid 1960s, due to technological advancement, the carrying capacity of the land and population increased.
Major reason for population changes
Change in death and birth rates
Birth rate
the average number of births in a year for every 1000 people in the population
death rate
the average number of deaths in a year for every 1000 people in the population
natural increase/decrease
difference between birth and death rate
Infant mortality
The number of children out of every 1000 that are born alive but who die before they reach the age of one.
Life expectancy
The average number of years that a person born in a country can expect to live
Why has the population grown?
medication got better which means that more people lived longer and more babies sruvived
Around 1800
The industrial revolutions in Europe and North America improved food production and distribution.
Around 1900
Improved medicine and sanitation meant many diseases were eradicated or cured
Late 1900s
The green revolution increased food production in LEDCS
under population
Increases in the population level allow more effective exploitation of resources.
optimum population
The population level at which the highest economic standard is achieved. The available resources are exploited effectively
Over population
Increases in the population level pas the optimum, results in lower standards of living
Bangladesh population
163 million
Bangladesh population density
1128 km^2
Bangladesh rate of natural increase
1.5%
Bangladesh location
Bay of bengal and close to sea level
Bangladesh floods
40% of Bangladesh is flooded
Bangladesh characteristics
corrupted, underemployed , bad health care