<span>three most severe downturns in the United States economy since the 1920s were:
- The depression of 1921, happened because we receive a blowback for all the money we spent on world war I
- The Great Depression of 1929-1933 , happened because our investment to expand our business to all over the world
- The Great Recession of 2007, happen because of the mortgage crisis, causing Global financial crisis</span>
Answer: Child labor laws, better working conditions in factories, shorter working hours
Explanation: I hope this helps, I remember learning it
Question : WHat did ellen Ochoa compare weightlessness to
Logical answer : Swimming.
