Canal
The pyramid is man made, the Nile is a river and a natural phenomenon.
The first straight edge was made by shaping a piece of material, such as metal or wood, into a long, flat, and perfectly straight tool. This tool was then used for measuring and drawing straight lines accurately.
1. Colorado 2. Utah 3. New Mexico 4.Wyoming EDIT: Actually there are only three since the New Mexico/Texas border near El Paso is not straight.
The river is frozen
A man made waterway is a canal.
No because a man can not make a river
The Colorado river is not man made, but a reservoir on the river named Lake Powell is.
the River Thames, is natural, it is not man-made.
the river thames, is natural, it is not man-made.
yes it is man made
No, the St. Lawrence River is not man made. But the St. Lawrence Seaway that follows part of the river's path is.
No, it is a naturally formed river.
it not man made it is a natural landmark
no.
No
No.
it was a man made river retards