Final answer:
Rosa Parks refusing to move to the back of the bus was not a key moment in the Civil Rights Movement that led to the passage of the Civil Rights Act in 1964.
Step-by-step explanation:
The event that was NOT a key moment in the Civil Rights Movement that led to the passage of the Civil Rights Act in 1964 was Rosa Parks refusing to move to the back of the bus. While Rosa Parks' actions played a significant role in the movement and led to the Montgomery Bus Boycott, it was not directly responsible for the passage of the Civil Rights Act of 1964. The other events mentioned - the formation of the Southern Christian Leadership Conference, Dr. Martin Luther King Jr.'s march on Washington, and media coverage of nonviolent protests turning public opinion against civil rights - were all key moments that contributed to the passage of the Civil Rights Act.