Answer:
A pull factor
Explanation
A push factor is the opposite and you want to leave that place. I remember it like getting pushed away
A pull factor is when you are wanting to go there because it benefits you and your family. I remember it like you are getting pulled to the right place.
The Answer is A. Cuba is located at #1.
The water flowing in a stream or river is fed by numerous smaller streams, which are fed by even smaller streams that collect water from melting snow or ice up in the mountains, from springs, and possibly from human wasterwater sources. The bottoms of rivers are also below the water table in many places, so there will always be water at that level.