Key terms 1
What is population?
all people living in one area
What is carrying capacity?
The maximum number of population that a area can support
What are push and pull factors?
Factors that attract or push humans away from a area
Over the past 50 years our population has
Increased
Why do we need to control population growth?
To mitigate our impact on the planet and ensure a higher quality of life for all
What is exponential growth?
when the growth rate increases rapidly
What is birth rate?
The number of births over time
Name three push factors
Drought, Poverty, Poor services, sea level rise. natural hazards,
What is a population pyramid?
a diagram that shows the proportion of a population that is male or female in different age groups
How can family planning help manage human population?
Couples plan when and how to have children. This involves the use of contraception, IVF, sterilisation and abortions.
What is the lag phase of population growth
The time where an organism is adapting to the new environment
What is natural increase?
The birth rate minus the death rate
Name three pull factors
Employment, good education, good healthcare, good infrastructure, better quality of life
Why do we need population pyramids?
It can be used for displaying future trends in a population.
How can improved education help manage human population?
Women are given more opportunities to have careers, there is more understanding of the impacts of having lots of children, and it can reduce underage marriage
What is log growth
When the growth rate of a population increases rapidly over time
When is population density?
The number of people living in a defined area.
What would cause mass migration?
War, civil unrest, natural disasters, terrorism
What are dependent people in a population?
People that are not working and rely others to meet their needs
How can antinatalist policies help manage human population?
Countries regulate the amount of children a family can have to protect the resources within that area.
What is the stationary phase of population growth?
when the growth of a population has stopped
What is population distribution?
Where individuals in populations do or do not live
What factors affect birth rate and death rate?
Quality of medical care, education, the economics, the need for more labour,
What are independent people in a population?
Those people in a population that are economically active
How can pronatalist policies help manage human population?
Countries get concerned by a low population and the impact on the economy so they incentivise people to having larger families.