A) Victoria Falls, Angel Falls, Yosemite Falls B) Iguazu Falls, Yellowstone Falls, Multnomah Falls C) Horseshoe Falls, American Falls, Bridal Veil Falls D) Yosemite Falls, Plitvice Falls, Sutherland Falls
A) Columbia River B) Niagara River C) Amazon River D) Mississippi River
A) Buffalo, New York B) Niagara Falls, New York C) Toronto D) Montreal
A) 85,000 cubic feet per second B) 75,000 cubic feet per second C) 100,000 cubic feet per second D) 50,000 cubic feet per second
A) David Blaine B) Nik Wallenda C) Annie Edson Taylor D) Karl Walenda
A) Grand Canyon Skywalk B) Maid of the Mist boat tour C) Pygmy Goat Safari D) Alcatraz Island Tour
A) 1905 B) 1901 C) 1910 D) 1898
A) Limestone B) Granite C) Slate D) Sandstone
A) Tsunamis B) Deserts C) Heat waves D) Ice formations |