Question

Male Female United States - 2014 100+ 95 - 99 90 - 94 85 - 89 80 - 84 75 - 79 70 - 74 60 - 64 55 - 59 50 - 54 45 - 49 40 - 44 30 - 34 25 - 29 15 - 19 10 - 14 5-9 0 0 36 9 12 15 Population (in millions) Age Group Population (in millions)

Questions based on population pyramids above:

1. What might be causing the two bumps seen on the United States population pyramid?
2. What population pyramids indicate total fertility rates below replacement level?
3. What population pyramids indicate total fertility at or very close to replacement levels?
4. What population pyramids indicate total fertility rates well above replacement level?
5. What might be causing the spike in adults age 20-45 in the United Arab Emirates? Be sure to speak to the gender of the majority of these people as well.
6. Why are there more women than men in the older age brackets?
7. What population pyramids indicate high age dependency ratios?
8. How is it that India is still growing even though its total fertility rate has stabilized?
9. What might be causing the sudden decrease in population of people around ages 30-35 in Zimbabwe?
10. What might of have caused the temporary slow down in fertility rates seen near the bottom Afghanistan’s Population Pyramid?
11. What problems will a country with a population structure such as Korea or Cuba face in the next few decades?
12. What problems will a country with a population structure such as Nigeria face in the next few decades?
13. Hypothetically, what would a population for a cemetery look like?

Answer 1

1. These bumps are because, US has better health facilities that let the people live longer and thus they have high life expectancy. There is better facilities for old age homes and pension is given to old age people for better care.
2. When pyramids have narrow base and broad at the top, it represents that birth rate is very while life expectancy is more and fertility rate is below replacement level
3. When the pyramid is little broader at the base or equal to the above. In this case, the rate of birth is well maintained. It remains broad at the top too to some extent
4. Here, we see very broad base representing high birth rate and thus more replacement level. While at the top it becomes narrow
5. This might be due to migration of people in UAE from various other countries at the age of 20 to 45 age
6. Because, women live longer than men due to biological factors
7. When the top is broad, it represents high dependency ratio that shows that number of people above 60 age is very high
8. India is so because of past growth factors and past features of birth and death rates.
9. (Zimbabwe) It might be due to high death rates due to diseases or migration to other countries.
10. It is due to low birth rates or low sex ratio. (Afghanistan)
11. They (Korea, Cuba) will suffer from high dependency ratio
12. They (Nigeria) will suffer from lack of resources due to continuous increase in population due to high birth rates while decrease in death rates due to medical facilities improvements.

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