By working together voluntarily, the railroad companies were able to standardize their timetables in 1883. The correct option among all the options that are given in the question is the second option. The creation of time tables made the railway system more efficient and people could know the exact time at which their goods or the people travelling will reach their destination.
The flood made silt near rivers and silt made land extremely fertile for farming.
The answer is A hope this helps have a good day
Spain is the area that was added to Napoleon's Empire.
He obtained the area through the Peninsular War.