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.
5. Great Lakes â a group of five lakes, four of which make-up part of the border between the US and Canada. 6. Canadian Shield â area made from ancient rock covering a large part of eastern and central Canada: known for. its thin, rocky soil that is rich in minerals; and rough, rolling landscape, as well as many lakes and rivers. 7. Rocky Mountains â found in western Canada, a long mountain chain stretching over 3,000 miles from British. Columbia in Canada to New Mexico in the United States. 8.