L1 - Population Explosion? Flashcards
What does the population clock show?
The current global population
What has the global population at 2100 been predicted at?
11 billion due to the African population quadrupling
Why is the fact that a baby in India being picked as the 7 billionth person inaccurate?
It is inaccurate as it is impossible to record and register every single birth and death. This was just a prediction.
Name a problem when trying to predict future population growth
Natural disasters could occur such as the black death, greatly decreasing the population. There is no way to predict the unknown.
How long did it take to double the population at 8000 BC?
It took a million years.
How long does it now take to double the global population?
35 years, this shows exponential growth.
Name two countries that used population control policies?
china and India
How did India attempt to control population growth?
The government gave car incentives to people who agreed to become sterilised (can no longer have children).
What does CBR and CDR stand for?
CBR: Crude Birth Rate
CDR: Crude Death Rate
How can the level of development effect the population of a country?
- Better/worse healthcare (population increase/decrease)
- Ageing population (overall fertility of the population begins to drop)
- More doctors/nurses/hospitals (More people stay alive longer)
What is predicted for the ageing population by 2100?
The number of younger people begins to slightly decrease as the number of older people increases. People start to live for longer.
