Southwest - The southwest was dry and the Native Americans lived in tiered homes made out of adobe bricks. Famous tribes here include the Navajo Nation, the Apache, and the Pueblo Indians.
Northwest Coast/Plateau - These Native Americans were known for their houses made of cedar planks as well as their totem poles. Tribes include the Nez Perce, Salish, and the Tlingit.
Command system is the government that controls the factors of production and makes all decisions about their use. so your answer is command
A process in which molecules of a solvent tend to pass through an semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.
It might be the fur trade