respuesta: Con las herramientas de metal se producían más alimentos. El comercio apareció porque la gente se aburría. En la Edad de los Metales se inventó el carro y el barco de vela.
B , Without the faith if people there wouldnt have been a mandate of heaven it wouldve been just some random chinese dude saying he had the right to rule so the more people took the principle seriously the more power it had to influence , and thats how we ended up with the mandate
It proved that the world was round to all the people who didn't believe so then.