Answer:
Explanation:
the California gold rush
job opportunities in the US
political unrest in China
ALL the answers.
I'm not sure exactly what unit you're referring to, but three of the main factors that affect oil prices today would be natural disasters, futures trading, and global demand.
The correct answer to the question is:
~Government: monarchy that employed a large bureaucracy to maintain orderly government. the tang- civil service exam to become a leader (this was brought back). Economy: grew in size, and in complexity, the invention of gunpowder was a source of trade. paper money was introduced. agriculture was improved once the GC was created.
Hope this helps!!!