16. Which river flows through the capitals of Austria, Hungary, and Serbia from the Black Forest to the Black Sea? a) Danube b) Volga c) Rhine d) Seine
18. What was the ancient city, carved out of red rock in Jordan, that was forgotten by Europeans until the 19th century? a) Petra b) Pompeii c) Aqaba d) Jerash
26. Famous for its coffee and the nuts named after it, which country occupies almost half the continent of South America? a) Peru b) Brazil c) Chile d) Colombia