Geographic Wonders

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1. Which river carved most of the Grand Canyon in the southwestern United States?

   • Colorado River
   • Missouri River
   • Rio Grande
   • Columbia River

2. The Great Barrier Reef extends offshore along which Australian state?

   • Western Australia
   • Tasmania
   • Queensland
   • Victoria

3. Salar de Uyuni, the world’s largest salt flat, lies on the high Altiplano of which country?

   • Chile
   • Peru
   • Argentina
   • Bolivia

4. The Giant’s Causeway in Northern Ireland is composed mainly of columns of which volcanic rock?

   • Granite
   • Basalt
   • Marble
   • Sandstone

5. Ha Long Bay’s thousands of steep islands are examples of what landscape type?

   • Drowned limestone karst
   • Glacial moraine
   • Volcanic caldera
   • River delta

6. The Cliffs of Moher rise above the Atlantic coast in which Irish county?

   • County Cork
   • County Donegal
   • County Clare
   • County Wicklow

7. The tall pillars of Zhangjiajie in China are made chiefly from which rock?

   • Limestone
   • Quartz sandstone
   • Basalt
   • Slate

8. The famous glow in New Zealand’s Waitomo caves is produced by larvae using light for what purpose?

   • Warming cave water
   • Navigating to daylight
   • Growing cave plants
   • Attracting prey to sticky threads

9. Much of the Danakil Depression lies below sea level in Ethiopia’s part of which tectonic region?

   • Alpine Fault
   • San Andreas system
   • Afar Triple Junction
   • Himalayan suture

10. Jeita Grotto’s upper and lower limestone cave galleries are in which country?

    • Lebanon
    • Jordan
    • Oman
    • Georgia