What technological invention of the 1920's had the biggest impact on the life of the american?

During the 1920s, which president atoped a laissez-faire toward business, which bring about great depression

What is intervention ? in government terms

The constitution of the state of georgia provides that any amendment to the constitution must be a) proposed by the governor. b) approved by the judiciary. c) proposed by the general assembly. d) approved the united states supreme court.