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.
The answer is the variant C.clouds
Wind blowing across the surface of the ocean is the major mechanism that generates most ocean surface waves. the movement of two liquids with different densities creates most waves.
