During the 1970s, which piece of legislation did the national organization for women actively promote, though it was never ratified? the clean air act the voting rights act the civil rights act the equal rights amendment

The correct answer is the Equal Rights Amendment.

The Civil Rights Act was passed in America in 1964.
The Voting Rights Act was passed in 1965.
The Clean Air Act was passed in 1970 and then amendments were made to it in 1979.

This shows that the only correct answer can be the Equal Rights Amendment. This amendment was supported by the National Organization for Women because it would allow for the same civil rights that men have. This would result in no legal difference between a man and woman.