Hi!
1.) A low population growth rate can cause a rise in the dependency ratio.
When the population growth is decreasing, there are fewer and fewer children leading to more and more elderly as the workforce-age people are growing older. This puts pressure on the people in the workforce because they have to care for all of these elderly people.
2.) A low population growth rate can decrease the number of schools.
If there are fewer children being born, there will likely be fewer schools because there isn't as much of a demand for schooling as there was before.
For a similar problem, see:
https://brainly.com/question/18640444