Answer:
Azores hotspot
Explanation:
The Azores hotspot is a volcanic hotspot located at the Azores in the Northern Atlantic Ocean.
The main reason for the wall's construction had always been defense. Since China's first dynasty, the empire faced a near-constant threat of attack from the nomadic tribes to the north. This included those famed Mongols as well as lesser-known groups like the Xiongnu and the Göktürks.
One of the main reasons, I think, that they revolted was because the British had put a lot of taxes on the goods of the American colonists. One of the big things they taxed was tea. I think that if the British would have gone lighter on the taxes, especially the tea ones, the movement might have not happened.
Tea was a big thing at the time so obviously if they had to pay taxes for something they truly loved, it would make them upset.
I hope this helps, I’m not sure exactly when the question you’re asking is about but I tried :)