Which areas would be most affected if the North Atlantic Current disappeared?

The earth rotates on its axis and revolves around the sun every

The english language is part of which language family? a. alatic b. dravidan c. indo-european d. khoisan

This is a 2017 topographic map of puerto rico in the united states, and i'm sorry that people there have suffered such a disaster. i want to ask, what do the yellow dots and areas represent on this graph? and the blue area and the little blue circle, and the little blue sign that looks like a signal tower, what do they stand for?