Which of the following events was a cause of changing attitudes toward the environment in the 1960s and 1970s?

A.
Levittown

B.
Love Canal

C.
Gulf of Tonkin

D.
Grand Canyon

B. Love Canal

The correct answer is:

B. Love Canal

Love Canal was a major event that contributed to changing attitudes toward the environment in the 1960s and 1970s. It involved the discovery of toxic chemical waste buried underneath a residential area in Niagara Falls, New York. The incident raised awareness about the dangers of pollution and its impact on public health, leading to increased environmental activism and the passing of legislation such as the Superfund Act to address environmental hazards.