Concurrent power supply opulent be used like in Supreme Court deciding the overall outcome of the case.
2- z ship tragedy 3- Europe 4 - the americas
Answer:
To protect the silk trade route
Explanation:
The han dynasty expanded and strengthen the wall so they could protect and ensure the safety of the silk trade route also because the northern nations were a threat as well. To keep raiding parties out as well were one of the reasons.
Hope this helped!
I believe the answer is Spain.