Madagascar is the 4th largest island in the world.
Currently our continents are move about 1-2 inches towards each other every year. over the course of many years we could end up colliding with other contries which would cause new mountain ranges and another supercontinent.
Doldrums is the calm area near the equator.
Here is what i've gathered from online.
"The Mississippi River flows from its starting point in Minnesota to the Gulf of Mexico, which means it flows south."
I hope i helped, i only researched because i wanted to be sure with my answer.
Correct answer is : Us Virginia island , Guam and American Samoa.
Northern Marina Island and Puerto Rico are the only ones with the status of commonwealth