15. Name the countries of Central America. Which one of these borders on Mexico?
16. Name in order, beginning at the Isthmus of Panama, the countries of South America that touch on the Caribbean Sea and the Atlantic Ocean.
17. The meridian through Atlanta, Georgia, intersects what South American Republics? Is the continent of South America, as a whole, east or west of the United States?
18. What two countries of South America have no sea coast?
19. A vessel goes from London, England, to San Francisco by the Suez Canal. Through what waters does it pass?
20. What waters connect the Black Sea with the Mediterranean? The Gulf of Aden with the Red Sea?
21. Where does the Danube rise? through what countries does it flow? and where does it empty?
22. What three rivers flow north into the Arctic from Siberia?
23. What mountains lie between France and Spain? Between Tibet and India?
24. Name in order in a clockwise direction the countries bordering on the Mediterranean.