No likes Which of these is an example of Progressive Era improvements?

a
City conditions worsened as people faced overcrowding, diseases, and lack of good healthcare.
b
The Meat Inspection Act was created to require factories and stores to keep food safe.
c
Labor unions were created to help people socialize.
d
The first automobiles were very expensive, so few people could afford to buy one.

Type the corect answer in the box. there were many causes of the enlightenment. however, a particular revolution played an important role in its development. this revolution was a result of discoveries made by scientists such as isaac newton and galileo galilei. they dug deep into the realms of science to discover new laws of physics and decipher the mysteries of the universe. the revolution refuted the claims of the catholic church about the position of earth in the solar system. this revolution is called what?