a. to store information about the world and convey that information
Explanation:
The maps have been of interest for the people since very long time ago, and there are lot of evidence about created since several thousand years ago. Initially the maps were much simpler, not very accurate, and they represented smaller areas. As the technology was developing and the people were discovering more and more of the world, the maps were becoming more precise and more complex. In order to be able to represent things properly and in a manner that they can be practical and easy for usage, lot of different types of maps have been created over time, and each of them represents certain characteristic of the world.
The speed of an object is defined as the total distance covered divided by total time taken. The velocity of an object is defined as the total displacement divided by total time taken.
