What major developments shaped the American economy in the 1970s and contributed to its transformation?

Answer: Deindustralization of industries, inflation, term problems.

Explanation:

There are many factors that caused the birth of the environmental movement back then in the 1970s and those were nuclear weapons, overpopulation, energy crisis and more.

There are some major developments that happened yin the America that shaped the economy and transformed. Those were deindustrialization of some of the biggest industries in America and term problems. For example, there was an deindustralization of steel industry and spiraling inflation in the America.