What do weather maps display?

Explanation:

A weather map is a map that displays a variety of meteorological features to be used in research and weather reporting and forecasting. Weather maps have been used since the mid-1800s. During the Crimean War of 1853 to 1856 it was shown by a French scientist that a weather map showing a terrible storm's chronological path would have potentially helped save a fleet at Balaklava. The world's first weather map was created in 1961 by an English scientist Francis Galton who plotted data on a map after studying information from weather stations country-wide. This led to newspapers publishing weather maps and the development of networks to help gather and report data in real time to enable the use of weather maps around the world.

b

explanation:

c -invasion by the moroccans.