The process by which the national government returns powers once held
by state and local governments to these governments is called
Devolution.
Government is defined as a group of people which controls an organized
community such as a state or country.
All tiers of government have powers and responsibilities and in situations
whereby national government returns powers once held by state and local
governments it is referred to as Devolution of power.
Read more about Devolution here https://brainly.com/question/10576702