Step-by-step explanation:
A map may be defined as a diagrammatic representation or a symbolic depiction of an area of the land or the sea - the demographic area showing its physical features like rivers, mountains, plain areas, roads, etc.
A map scale may be defined as the relationship between the distance or the length of the original ground and their corresponding distance on the map.
a). The advantage that a large scale map shows representing a smaller portion area on the map is that it can cover or represent all the details of the landscape on the map.
b). The advantage of a small scale map showing the entire glove has the advantage it can effectively communicate the various processes as well as trends which affect everyone.