What factors led to population growth in the high middle ages?

Duty free shops in airports and in international boats sell merchandise that can be brought into the country without which of the following

The maps below show the middle east. which best explains how the green areas depicted in the image on the left are reflected in the population map on the right? populations are greater in fertile areas that are close to freshwater sources, which is why more people live near deserts. populations are greater in fertile areas that are close to freshwater sources, which is why more people live near oceans. populations are greater in fertile areas that are close to freshwater sources, which is why more people live near mountains. populations are greater in fertile areas that are close to freshwater sources, which is why more people live near rivers. plz hurry in test only have 34 mins left

Which would make the best heading for this list of notes about the migration of african-americans during the reconstruction era?