Does mexico have more coastline on the gulf of mexico or on the pacific ocean

The two types of plains are coastal plains and lowland plains

Select the natural regions. delta denver forest georgia north america plateau stream

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?