Question

1. what has been a significant effect of allowing tribes to select their own leaders?

decreased tribal sovereignty
revitalization of tribal sovereignty and self - governance
weakened negotiation power with the federal government
increased federal control over tribal lands

1. what role did the bureau of indian affairs play in the exploitation of american indian resources?

it mismanaged american indian resources and trust accounts.
it prevented any non - american indian access to american indian resources.
it supported the development of american indian cultural institutions.
it effectively protected american indian resources.

Explanation:

For question 3: When tribes can select their own leaders, it gives them more control over their own affairs, which is in line with the concept of sovereignty and self - governance. Decreased sovereignty (option 1) and increased federal control (option 4) are the opposite of what would happen. Weakened negotiation power (option 3) also does not make sense as having self - selected leaders would likely strengthen their position.
For question 4: The Bureau of Indian Affairs has a history of mismanagement. Option 2 (preventing non - American Indian access) is not in line with historical exploitation. Option 3 (supporting cultural institutions) is not related to exploitation. Option 4 (effectively protecting resources) is false as there was exploitation.

Answer:

1. Revitalization of tribal sovereignty and self - governance
2. It mismanaged American Indian resources and trust accounts.