Question: what are the main features of a population pyramid

title: Population pyramid
text: Population pyramids often contain continuous stacked - histogram bars , making it a horizontal bar diagram . The population size is depicted on the x-axis ( horizontal ) while the age - groups are represented on the y - axis ( vertical ) . The size of the population can either be measured as a percentage of the total population or by raw number . Males are conventionally shown on the left and females on the right . Population pyramids are often viewed as the most effective way to graphically depict the age and distribution of a population , partly because of the very clear image these pyramids represent. A great deal of information about the population broken down by age and sex can be read from a population pyramid , and this can shed light on the extent of development and other aspects of the population . 

Answer: answer: Population pyramids are often viewed as the most effective way to graphically depict the age and distribution of a population.
The population size is depicted on the x-axis ( horizontal ) while the age - groups are represented on the y - axis ( vertical ) .
answer: Because of the very clear image they represent, population pyramids are a very effective way to graphically depict the age and distribution of a population and give a great deal of information about the population broken down by age and sex, which can shed light on the extent of development and other aspects of the population .