Need help on edge assignment How did the civil service exams help make Chinese society more stable?

They reduced the power and influence of emperors.
They removed unnecessary jobs in the bureaucracy.
They prevented dishonest individuals from serving in government.
They identified who was most qualified to hold government jobs.

What is the line drawn on a production possibilities graph called?

What do sellers do if they expect the price of goods they have for sale to increase dramatically in the near future? store the goods indefinitely regardless of when the price rises store the goods until the price rises and then try to sell them sell the goods now and try to invest the money instead of resupplying sell the goods now but try to get the higher price for them

Which of the following was a crop not grown in the olmec farming ? potatoes or squash or maiden or beans