BOTH
it is not natural, and made by humans. - man made
it is an engineering structure as well!
A bridge can be man made or natural. Anatural bridge can be a tree, made of stone, or any natural material and isn't man made.
A bridge
A bridge is a man-made non-building structure providing access for vehicles or pedestrians over some barrier such as a river or the like.
Yes, it is like a bridge, but it is generally a natural formation. A causeway is a raised roadway or roadbed or natural bridge, usually over a body of water. A "bridge", in the majority of cases implies a man-made structure.
A structure made by a man
Yes
There is no way of knowing the name of the first bridge man walked across. It is likely the first bridges were simply naturally created crossing points, such as a log across a stream, and man made bridges have been made since before written records. This means that if people did give the structure a name it would not be recorded.
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I think you mean "confidence" man. And the answer is the Brooklyn Bridge.
Yes. It is an amazing feat of engineering.
A rock structure is made out of any type of rock. A rock structure can be man made but is usually naturally made, caused by weather or erosion.
They are man made structures