The ear canal functions as an entryway for sound waves, which get propelled toward the tympanic membrane, known as the eardrum. When sounds enter the middle ear, they are transmitted to tiny bones called the ossicles, which consist of the stapes, the incus, and the malleus. Sounds are later carried (in the form of waves) to the inner ear.
The Great Lakes are bordered by the United States and Canada. The  two regions bordering the Great Lakes are the Central and  Northeast. Edit. Share to: Answered.
The eastern side of US has a broad coastal plain while the Appalachian Mountain separates the Great Lakes from the Eastern Seaboard. The US has five great lakes located in the north central while the Great Plains are in the West of River Mississippi. Alaska is particularly prominent with its highest Mountain.