Richard Nixon did all of the following as president excepted "be impeached", since he didn't allow this to happen by resigning from office. He was the first and only president to do so in US history.
It was mostly the "Environment and LGBT rights" movement that grew to be a significant social movement of the 1990s, since these issues were largely ignored during the movements in the 50s and 60s.
Answer:
Transportation is correct!
Hope this helps.
The Great Pyramid of Giza took between 20 and 30 years to build
