The development of the calander shows they can divde the number of minutes hours days month etc in a year. Development of the pyramids shows geometry and engineering. look up to make sure.
The Inca used those metals to decorate their palaces and had silverware, cups and dishes made of them.
Of course, only royalty had that.
Hey there,
The answer is "Brazil"
Hope this helps ^_^
Answer:
to live in the ring of fire is dangerous because of its full of volcano