Who invented the Microscope?
- A. Zacharias Janssen
- B. Theodore Maiman
- C. Jonas Edward Salk
- D. Thomas Edison
Correct Answer: A. Zacharias Janssen (1590)
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Who invented the Thermometer?
- A. Gowland Hopkins
- B. William Shockley
- C. Galileo Galilei
- D. Robert Arthur Moog
Correct Answer: C. Galileo Galilei (1593)
Who invented the Hot Air Balloon?
- A. Sir Frederick Banting
- B. Josef & Etienne Montgolfier
- C. Christopher Cockerell
- D. Bartolomeo Cristofori
Correct Answer: B. Josef & Etienne Montgolfier (1783)
Zimbabwe was earlier known as:
- A. Belgian Cango
- B. Burkina Faso
- C. Southern Rhodesia
- D. Gold Coast
Correct Answer: C. Southern Rhodesia
Which country is the largest producer of gold in the world?
- A. Saudi Arabia
- B. India
- C. China
- D. South Africa
Correct Answer: C. China
China is the largest producer of gold in the world. Today, China produces 440 metric tons of gold every year, more than anywhere else in the world. Australia is the second-largest gold-producing country, with about 300 tons (accounting for 9% of the world’s gold production) produced by Australia every year.
Who lead Muslim forces during the “Crusades’?
- A. Harun-ur-Rashid
- B. Salah-ud-Din Ayubi
- C. Walid-bin-Abdul Malik
- D. Ahmad Shah Qachar
Correct Answer: B. Salah-ud-Din Ayubi
Who is the only U.S. President to invent and patent something?
- A. Thomas Jefferson
- B. Hayes
- C. Rutherford B. Hayes
- D. Abraham Lincoln
Correct Answer: D. Abraham Lincoln
Abraham Lincoln’s patent relates to an invention to lift boats over shoals and obstructions in a river. It is the only United States patent ever registered to a President of the United States.