Population Pyramid

Today we discussed population pyramids in class. A population pyramid is a chart of population that is split by gender and age. In this split, men are listed generally on the left and women are listed generally on the right. At the bottom of the pyramid is the youngest age and as the lit goes up, the age categories do as well. The intervals of each lever are most frequently 5 years apart. The three major ranges for women are pre-reproduction which begin at ages 0-14, the currently reproducing ages 15- 44, and the post reproduction ages are from 45-100+ years. If the pyramid has a wide base then the population is growing rapidly. If the middle is the widest part of the pyramid then the population is growing slowly. The shorter the bar is then the less people or population there is from that age group. Then we discussed that demographic transition is breaking down the age groups. Pre- industrialization is before a country is fully developed and has improved their resources of technology.