they have different names
lakes and streams could have dried up now while before they might have given a rich supply of water
A time period has a line of time events.
By how old it is how old it looks lifelike.Look at the picture of ,or you could look at a new ,you can tell the different.byee
A topographic map only shows you what the landscape is like, and not much else, whereas a regular map will usually show more features.
they are not the same . get it ???
Because some maps want to show a larger area than others, so to fit everything on a piece of paper they have to change the scale.