There are two different types of vetoes that the president may use the standard veto and the pocket veto. Compare and contrast the two types of vetoes.

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

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ok whats to talk about were you scared or what?

b is correct

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