​By the Zhou Period, the Most Common Form of Economic

question 37

Multiple Choice

​By the Zhou period, the most common form of economic exchange was:

• A)​bronze
• B)​jade
• C)​barter
• D)​iron coins
• E)​shells

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Definitions:

Introspection

The practice of reflecting on one's own mental and emotional experiences.

Dependent Variable

In experimental research, the variable that is tested and measured to see if it is influenced by the independent variable.

Independent Variable

Independent Variable is the variable in an experiment or study that is manipulated or changed to test its effects on the dependent variable.

Measured

Quantitatively evaluated or assessed using specific criteria or instruments.