Answer to Question 1
Mitumba
Mt. Kenya
Kilimanjaro
KIatanga Plateau
Rwenzori
Semien
Answer to Question 2
Geographic good fortune has endowed the country with an abundance of navigable waterways17,600 miles of themthat lubricate the country's economy. Transporting goods by water costs 1/12 of shipping them overland. By more good fortune, many of those waterways overlay the Midwest, the world's largest patch of fertile ground. The US is also endowed with an abundance of natural harbors, including the world's three largest: Puget Sound, San Francisco Bay, and Chesapeake Bay.
The US has the geographic advantage of port infrastructure on both the Atlantic and Pacific and a strong (although aging) infrastructure linking them, so that in theory an economic downdraft occurring exclusively in either Asia or Europe would leave one coast an active trading zone.