Question

Merits and demerits of Underground rail

Answer 1

Advantage
- It's more environmentally friendly than everyone using their cars 
-It gives people lots of job opportunities (drivers, controllers, engineers etc) 
-It's quite efficient at transporting millions of passengers per year, imagine the carnage on the roads and streets if there was NO tube! No one would get anywhere, there would even be traffic on the paths! 
Disadvantage
― there is no air
― It have too much crowd
― You have to movefrom platform to platform & u can get lost
― You have to pay for every district U r in
hope it's may help u