A. The Silk Roads because there was a lot of trading and disease spreading.
Answer:
As the slab gets to a certain depth, it gets hot enough that it start to melt again. As it melts, it undergoes differentiation and also gets less dense. Low density means that it will start to rise back up again, usually, as granitic magma.
Explanation:
HOPE IT HELPS
Yes, <span> he was a Hui </span>Chinese<span> mariner, explorer, diplomat, </span>fleet<span> admiral, and court eunuch during </span>China's<span> early Ming dynasty. </span>
