The south would not be able to maintain its agricultural output until it developed a new system to replace
cotton with another cash crop.
enslaved labor
cotton gins
plantations

Arguably one of the most important inventions of the 20th century was a) the transistor. b) air conditioning. c) the vacuum cleaner. d) radio broadcasting.

The sixth amendment of the u.s. constitution guarantees the right to which of the following?

Based on the trends shown in this chart, which of the following predictions best tell about the u.s. population in 2020? (3 points) i. more than half of the u.s. population will live near an interstate highway. ii. less than one-quarter of the u.s. population will live in urban areas. iii. more than half of the u.s. population will live in suburban areas. i only iii only i and iii only ii and iii only i, ii, and iii