How did the development of new industries for consumer goods cause the economic boom of the ""Roaring Twenties""?

Which of the follow modern activities would only have been possible after the neolithic revolution

Take another look at the population pyramid for france in 1950. notice the disparity between the male and female populations in the 55 to 70 year-old age group. what historical event could account for this disparity?

The directory was unsuccessful and was eventually replaced because no constitution had been created that outlined its authority. it was connected with the reign of terror. its members did not get along with napoleon. the national convention did not agree with the directory's decisions.