Question

name: blanca moses period 5 ch 2 ki 3 pg 9 - 10 chapter 2 - key issue #2.3: why does health vary by region? > aging and health - p.58 1. define population pyramid 2. what does it mean for a population pyramid to have a broad base? 3. the ____ percentage of children in sub - saharan africa __ the ability of these countries to provide needed services such as schools, hospitals, and __ centers. on the other hand, the __ of the population places a __ on developed countries to meet the needs of __ people for __ and medical care after they ____ from jobs. 4. define life expectancy.

Explanation:

1. A population pyramid is a graphical representation that shows the age - and sex - distribution of a population. It has the age groups on the vertical axis and the number or percentage of males and females on the horizontal axis.
2. A broad base in a population pyramid indicates a high proportion of young individuals in the population, often associated with high birth rates.
3. The high percentage of children in sub - Saharan Africa strains the ability of these countries to provide needed services such as schools, hospitals, and day - care centers. On the other hand, the aging of the population places a burden on developed countries to meet the needs of elderly people for pension and medical care after they retire from jobs.
4. Life expectancy is the average number of years that a person is expected to live, based on statistical data for a given population.

Answer:

1. A graphical representation showing age - and sex - distribution of a population.
2. Indicates a high proportion of young individuals and high birth rates.
3. high; strains; day - care; aging; burden; elderly; pension; retire
4. The average number of years a person is expected to live based on statistical data for a given population.