Answer:
the American liner Housatonic was sunk by a German U-boat.
Flood is a drawback of the Tiber river for the city of Rome.
Explanation:
Tiber River is one of the famous river in the city of Rome. There are various advantages of Tiber River ,they get food such as fish from the Tiber River as well as they used the river water for drinking purpose. Tiber River is used for transportation purpose and for trading purpose as well.
There are certain disadvantage of the Tiber River , that is this river causes flood as a result huge destruction takes place . Many villages have been destroyed as well as many people died due to flood.
