What term describes a manmade structure that carries water, often resembling a bridge? Parthenon
Aqueduct
Column
Colosseum

It is an aqueduct. Btw, why would PARTHENON even be an option???

It depends on what type of third separates the three notes.for example: if you have two mayor thirds is an "aumented chord"if you have two minor thirds is an "diminued chord"if you have one mayor first and then one minor is a "mayor chord"and inverted is a "minor chord"