What was a major factor leading to the erosion of
regional cultural differences in the 1920s?
(1) development of television
(2) growing popularity of radio and motion
pictures
(3) publication of novels by f. scott fitzgerald
and sinclair lewis
(4) expansion of air travel after charles
lindbergh’s flight

(2) Growing popularity of radio and motion pictures

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy