3 (Study Island)
In east-central Missouri, on the Mississippi River just south of the confluence with the Missouri River. It is about midway between Iowa and Arkansas, across the Mississippi River from Illinois.
Look on a map. The longest is the Mississippi/Missouri river system.
the Ohio,Missouri,Arkansas, and the red river
The map's scale
A stream,river or another body of water.
A blue line represents a river on a map so you know it is a river,a lake, or the sea
Scale
possibly the Mackenzie but that was just a judgment off a map.
A wavy blue line on a map usually indicates water. I could indicate a river, canal, or any type of waterway.
A map scale of 1:175,000 means that 1 centimetre on the map represents 175,000 centimetres on the ground.
Where does the series number on a map appear
scaleAPEX(: