Question

“The shape of the population pyramid reflects the characteristics of the population.” Support the statement with examples.

Answer 1

The shape of the population pyramid reflects the characteristics of the population. The left side shows the percentage of males while the right shows the percentage of women in each age group. There are different types of population pyramids:

• Expanding population:
  Nigeria, Bangladesh, Mexico, India, and other developing and underdeveloped countries of the world is having the characteristics of expanding population which have a triangular-shaped pyramid with a wide base. These have a larger population in lower age groups due to the high birth rates.
• Constant population:
  Developed countries like Australia have an age-sex pyramid bell-shaped and tapered towards the top. It shows birth and death rates are almost equal leading to a near-constant population.
• Declining population:
  The developed countries having low birth and death rates come under this category which shows the pyramid of narrow base and a tapered top. The population growth in developed countries is usually zero or negative. Example; Japan, Britain, France, etc.