Which describes a difference between the south and the north that grew larger after 1820? a. the south's economy was more industrial than the north's. b. the south's railroad network was larger than the north's. c. the north's power in congress became weaker than the south's. d. the north's population grew at a faster rate than the south's.

D.

The North's population grew at a faster rate than the South's.

Explanation:

- 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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answer; i believe its (cpr);