Why do more hydrothermal resources exist in the western regions of the united states?

answer; native americans who sometimes actively impeded railroad construction; physical obstacles like rivers and canyons, and

within these regions are all the major types of biomes in the world. a biome is a community of animals and plants spreading over an extensive area with a relatively uniform climate. some diverse biomes represented in north america include desert, grassland, tundra, and coral reefs.