Based on the information given, it should be noted that the regions whose populations have 9 as the power include Africa and Asia.
Information regarding the population.
From the complete information, it can also be deduced that the regions whose populations have 8 as the power include North America, Latin America, and Caribbean.
The regions that have populations with 7 as their power of 10 include Oceania.
In conclusion, the regions whose populations have 9 as the power include Africa and Asia.