World’s famous river Hudson is located in?
- A. South America
- B. United States
- C. Russia
- D. Africa
Correct Answer: B. United States
Correct Answer: A. Alessandro Volta
Correct Answer: D. 790
Correct Answer: D. Canada
Correct Answer: A. Otto Wichterle (1961)
Correct Answer: D. Dennis Tito
Correct Answer: A. United States