Which term describes the formation of the Hidden communities to help runaway slaves alive​

The underground railroad

the underground railroad was made to help slaves escape using passageways and peoples homes.

what are local authorities doing to fix the problem

explanation: what are local authorities doing to fix the problem

president franklin roosevelt supported the tva as part of his first new deal measures approved by congress in 1933. this new agency was designed to control floods, produce electric power, and improve the lives of people living in the tennessee valley. the tva accomplished many of these goals despite problems.