Why would sea travel be safer then travel over land?

How long ago was the fall of rome (in years)

Which mountain region leads the nation in producing young chickens? blue ridge appalachian plateau coastal plain ridge and valley

Which answer best describes an advantage of shipping goods by canal? a) most towns would rather have canals then noisy railroads b) goods could travel very fast downstream in the canal system c) traveling by boat is a much more relaxing way to transport goods. d) heavy loads of goods could travel by boat more easily then if pulled by horses.