How did elevated trains and subways improve urban transportation?

What is one difference between austria and switzerland? a. austria is landlocked. b. austria has more minerals resources c. austria has a strong tourism industry d. austria has a strong dairy cattle industry

The process by which liquid water changes into water vapour is called what ?

Dan is an automobile engineer. he works for a well-known automobile firm. he used cae software to authorize a design before committing to making a physical prototype. which prototyping method did he use?