Answer:
I'm pretty sure it's all of the above
They allowed for much stronger and more durable weapons.
Answer:
4
Explanation:
It's not illegal its pretty effective
A. Yo rebuild westerns European nations
Answer:
Their inventions were paper, compass, silk, gunpowder and fireworks. The ancient Chinese civilisation had a huge impact on the modern world. ... Ancient Chinese paper was invented because the thick hard paper had taking forever to write on. Paper had made a contribution to the modern world because it is still used today.
Explanation: