Answer:
There are various regions in Eastern Washington including the Palouse and the Channeled Scablands.
Explanation:
The Cascade Mountains divide the state of Washington into two regions: Western Washington, which is the part of Washington continuous with the Pacific Coast. It has a strong maritime climatic influence. On the other side of the Cascade Mountains, Eastern Washington has a more continental climate. There are actually 4 geographical or climatic regions of Eastern Washington: East Slopes of Cascade Mountains; Central Basin, the Okanogan, Spokane, Palouse area; and the Northeastern Mountains and the Blue Mountains region.
Some Americans thought that making California a part of the US would strengthen the security of the nation because there was going to be fewer war threats by adding more territory.
Explanation
They believed that it would protect them more from war threats because California provided a coastline to protect the country, which added more territory. Having the control of it, they could build a defense against other countries who would want to invade from the west side.
In addition, California's natural resources such as silver, gold, and fertile soil were very important for the nation, which was in a growing process.
Because it provided them with guns and rum.