Both.
A variety of Federal programs, including the Clean Water Act, have delegated authority built in which means that the States enact the Federal programs.
So, both is the correct answer.
With urban planning, we were able to plan how water systems should work, how to stop diseases from spreading, and how to get rid of garbage. This had a deep, positive impact on cities.
Answer: Unions have historically formed to ensure fair wages, benefits and better working conditions for their members.
Explanation:
D.Moderate leaders were able to introduce free market reforms after Mao's death
The threat that nuclear weapons would be used.