4.1 Natural Increase Flashcards
(13 cards)
What is natural increase population?
The difference between birth rate and death rate, leading to population growth when births exceed deaths.
What is the birth rate?
The number of live births per 1,000 people per year
What is the death rate?
The number of deaths per 1,000 people per year.
What is the infant mortality rate?
The number of deaths of infants under one year old per 1,000 live births per year.
What is the fertility rate?
The average number of children a woman is expected to have during her lifetime.
What is the replacement-level fertility rate?
Around 2.1 children per woman, ensuring population stability without migration.
What does a wide base on a population pyramid indicate?
High birth rates and a young population.
What does a narrow base on a population pyramid indicate?
Low birth rates and an aging population.
What population pyramid shape is common in developing countries?
A triangular shape with a broad base and narrow top.
What population pyramid shape is common in developed countries?
A more rectangular shape with a balanced age distribution.
What is the dependency ratio?
The ratio of dependents (young and elderly) to the working-age population.
How is the dependency ratio calculated?
(Young Dependents+Elderly Dependents) ÷ Working-age population × 100.
What does a high dependency ratio mean for an economy?
Greater economic burden on the working population to support dependents.
