81. In which year did the Berlin Wall fall, leading to the reunification of Germany?
82. What is the national flower of Canada?
83. Who was the first American astronaut to orbit the Earth?
84. What is the chemical symbol for uranium?
85. What is the largest planet in the known universe?
86. Who wrote "The Iliad" and "The Odyssey"?
87. What is the chemical symbol for silver?
88. In which country was the bicycle invented?
89. What is the chemical symbol for tin?
90. Which gas do we breathe in, primarily, to stay alive?
Answers
81. 1989 82. Maple leaf (not a flower, but a national symbol) 83. John Glenn 84. U 85. Jupiter 86. Homer 87. Ag 88. Germany 89. Sn 90. Oxygen (O2)