Have the bravery to use your own reason! - that sums up the meaning of enlightenment. According to the quote, the Enlightenment encourages people to
for themselves.

length of the cultivating season was not a problem of new england agriculture

- 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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worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

this is a good question! i'll do some research and come back when i have the answer!