The Fertile Crescent is named after its O size.
O
shape.
O mountains.
O inhabitants.

The correct answer is "Shape"

Explanation:

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- three-quarters or two-thirds..

- "the constitution provides that an amendment may be proposed either by the congress with a two-thirds majority vote in both the house of representatives and the senate or by a constitutional convention called for by two-thirds of the state legislatures."

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