Well because nobody needed silk anymore and the people who did were extremely few in numbers
1 and 3, the answer would be the Fall of Constantinople. This was the imprisonment of the center of the Byzantine Empire by an attacking military of the Ottoman Empire. The Ottomans were ordered by the Ottoman Sultan, who beaten an armed forces ordered by Byzantine Emperor Constantine XI Palaiologos. The defeat of Constantinople shadowed a 53-day blockade that had initiated on 6 April 1453.
2. The answer would be Hundred Years of War. This War was a sequence of battles conducted from 1337 to 1453 by the House of Plantagenet, sovereigns of the Kingdom of England, counter to the House of Valois, sovereigns of the Kingdom of France, over the train to the French seat.
Answer:
Por favor me ajudem !!
As chamas do oxiacetileno são usadas para soldas, atingindo temperaturas próximas a 2000oC. Estas temperaturas são devidas à combustão do acetileno com o oxigênio: (dados: C=12/H=1/O=16)
1 C2H2(g) + 5/2 O2(g) → 2 CO2(g) + 1 H2O(g)
Segundo a reação, indique a massa de CO2 produzida com 9g H2O
Answer:
Courts may move or delay the trial to reduce pretrial publicity, limit the number of reporters in the courtroom or place strict controls on their conduct, isolate witnesses and jurors from the press, and sequester the jury.
It stopped the German advance into the Soviet Union and marked the turning of the tide of war in favor of the Allies.
Hope this helps