Who was the first person to prove the Earth is a sphere? MCQ with Answer and Explanation

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Who was the first person to prove the Earth is a sphere?

A. Pythagoras

B. Eratosthenes

C. Aristotle

D. Ptolemy

Answer: Option C

Solution (By JKSSB Mock Tests)

Aristotle provided observational evidence for the Earth being a sphere in the 4th century BCE.

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Who was the first person to develop the theory of relativity?

A. Max Planck

B. Albert Einstein

C. Isaac Newton

D. Stephen Hawking

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Correct Answer: Option B

Explanation:
Albert Einstein developed both special and general relativity in the early 20th century.

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Question #2

Who discovered insulin?

A. Alexander Fleming

B. Jonas Salk

C. Frederick Banting and Charles Best

D. Louis Pasteur

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Correct Answer: Option C

Explanation:
Banting and Best discovered insulin.

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Question #3

Who invented the Barbie doll?

A. Toy companies

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C. Ruth Handler

D. Both

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Correct Answer: Option C

Explanation:
Ruth Handler created Barbie.

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