Explica los cambios que han ocurrido a lo largo del tiempo en el casco antiguo y el ensanche

Which element about russia in 1990s in not accurate

Which measure of humidity, relative humidity or dew point, best describes the actual quantity of water vapor in a mass of air

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?