What is the term for a government where power is located in a single location, usually the capital city?

In north america, most winter storms form when cold, dry air from interacts with warm, moist air from

The vegetation that thrives in the tundra is limited to a. mosses, barley, wheat, and corn. b. coniferous trees. c. dwarf shrubs, mosses, lichen, potatoes, and beans. d. mosses, lichen, algae, and dwarf shrubs.

What factors britain to become an industrial and commercial power?