Final answer:
The pre-reproductive age group, less than the age of 15, is a significant factor in determining a country's population growth.
Step-by-step explanation:
The pre-reproductive age group, less than the age of 15, does indeed play a significant role in determining a country's population growth.
This is because the pre-reproductive age group consists of individuals who are not yet able to reproduce but will eventually enter the reproductive age group. As this age group grows, it suggests that there will be a higher number of individuals reaching the reproductive age in the future, thus contributing to population growth.
For example, if a country has a large proportion of its population in the pre-reproductive age group, it can anticipate a future increase in population as these individuals mature and have children.
Learn more about pre-reproductive age group, population growth