Silver is not a moon phase
Hope it helps :)
I want to say government or farming. Farming because it started a sort of trade and barter system, but government because it created regulations for a village lifestyle? I think it depends on what time period you're studying.
The source at the bottom would be information given by the people involved in a case.
The information given by the people that directly impacted by a certain case would most likely be designed to provide the most benefit for those people.
This is why united states operates on assumption that an accused would be innocent until he/she is proven guilty.
Information given by the people involved could only be held<em><u> as something to be confirmed </u></em>by other evidence or witnesses.
Answer:
Opportunity cost is the cost of a foregone alternative. If you chose one alternative over another, then the cost of choosing that alternative is an opportunity cost. Opportunity cost is the benefits you lose by choosing one alternative over another one.
Hope it helps.
