Answer:
Marc will need a climate map.
Step-by-step explanation:
If Marc wants to understand the different temperatures in different regions the best map type he can use is a climate map. This type of map is specialized in climate, representing all different climate types with their boundaries. There is also a possibility that in the legend there will be some basic information about each of the climate types.
If the reader of this type of map has a basic knowledge about the climates, then having them on a map will be of great use to understand the differences in temperature from one region to another. Each climate type has its own set of characteristics, one of the primary being the temperatures, so it is clear that a desert climate will be hot if it is near the Equator, or a tundra will be very cold for most of the year.