Who was the first person to reach the deepest point in the world's oceans (Challenger Deep)? MCQ with Answer and Explanation

Who was the first person to reach the deepest point in the world's oceans (Challenger Deep)?
A. Jacques Piccard and Don Walsh
B. Victor Vescovo
C. James Cameron
D. Sylvia Earle
Answer: Option A
Solution (By JKExamLibrary)
Jacques Piccard and Don Walsh reached the bottom of the Mariana Trench in the bathyscaphe Trieste in 1960.

This question belongs to: Static General Knowledge First in the World

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Who invented the safety pin?
A. Charles Goodyear
B. Walter Hunt
C. Elias Howe
D. Isaac Singer

Correct Answer: Option B


Explanation:
Walter Hunt invented the safety pin.

This question belongs to: Static General Knowledge First in the World
Question #2 Report Error
Who discovered the first millisecond pulsar?
A. Jocelyn Bell Burnell
B. Donald Backer
C. Antony Hewish
D. Aleksander Wolszczan

Correct Answer: Option B


Explanation:
Donald Backer discovered the first millisecond pulsar.

This question belongs to: Static General Knowledge First in the World
Question #3 Report Error
Who invented the typewriter?
A. Alexander Graham Bell
B. Thomas Edison
C. Nikola Tesla
D. Christopher Latham Sholes

Correct Answer: Option D


Explanation:
Sholes invented the first practical typewriter.

This question belongs to: Static General Knowledge First in the World