Native american reservations are assisted by which department?
department of the interior
department of trade
department of state
department of the treasury

Department of the Interior

Explanation:

The Indian reservations in the United States are areas that are governed and settled by members of a particular Native American tribe that is recognized in the United States. The Indian reserves receive support from the Department of the Interior. There are 326 reservations across the United States, some of which are very small, while some have relatively large territories. The majority of the reservation tend to be located in the northern, southwestern, western, and northwestern part of the country, while they are much less in number in the central, southern, and eastern parts of the country.

Native American reservations are assisted by the Department of Interiors (DOI).

Explanation:

The department of Interiors (DOI), formed on March 3, 1849, is a federal executive department of United States’ government which is responsible for managing and guarding most of the federal area/land and natural resources.  

Due to the broad range of responsibilities, this department of Interior (DOI) is also called (humorously) as “Department of Everything" because as the other nation’s interior ministries which are only addressing police matters and internal security, its role is beyond it.