Austindillardrl
Austindillardrl Austindillardrl
  • 17-02-2021
  • Physics
contestada

Which technological advancement made the Pony Express unnecessary?
Steamships
Cotton Gin
Telegraph
Steel Plow

Respuesta :

jacobhomovec
jacobhomovec jacobhomovec
  • 17-02-2021
The answer is Telegraph
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kkaye66 kkaye66
  • 17-02-2021
Telegraph! Because telegraphs were used to communicate and to (at that time) send messages rapidly.
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