Islam was introduced to China by envoys from the Middle East who traveled to meet Emperor Gaozong of the Tang Dynasty in the seventh century.
Answer:
A es la correcta por que si
If this is the picture then your answer would be, manufacturing industry ,
I hope I helped you all.
Answer: Registrar los movimientos sismicos.
Explanation: El sismografo es un instrumento que se utiliza para medir los movimientos de la tierra como sismos o terremotos.