Answer:
Department of the Interior
Explanation:
The institution that is always on disposal for the Indian reservations in case they need assistance is the Department of the Interior. In order for a group of Native Americans to be granted a reservation it has be part of a recognized tribe/nation in the United States. There are 567 recognized tribes but only 326 of them have their own reservations. The Native Americans that live in the reservations live mixed lives, as they both embrace the modern way of living to a certain extent, but also try to preserve their culture and traditions.
Islam spread through military conquest, trade, pilgrimage, and missionaries
The missionaries in the Oregon Territory had a very different purpose than the rest of those in the area. Most people who went west and to the Oregon Terrritory were doing so to get land and start a farm. Missionaries, while they might have done this as well, were primarily there to spread the Christian Gospel and start Christian ministries such as churches and orphanages.
There could’ve been civilization without agriculture but very low. People all around the world depend on agriculture such as farming, crops and so on. Without these, we’ll end up hunting for food again.