The best and most correct answer among the choices provided by the question are the following <span> people live longer human populations are larger people are more likely to move travel is easier and more convenient people can find mates from distant places people who move may change populations permanently</span> Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
Sometimes a “pyramid” of numbers can be a cake shape because it puts into a greater and better perspective on how much lower the numbers get from each level on the ecological pyramid to another. Here is an example of a numbers pyramid that is shaped in this way