Who discovered the first Earth-sized exoplanet? MCQ with Answer and Explanation

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Who discovered the first Earth-sized exoplanet?

A. Kepler-20e team

B. Both

C. Michel Mayor

D. NASA

Answer: Option A

Solution (By JKSSB Mock Tests)

Kepler mission.

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Question #1

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Who invented the Slinky?

A. Both

B. Toy companies

C. Betty James

D. Richard James

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Correct Answer: Option A

Explanation:
Richard James invented it accidentally.

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

Question #2

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Which was the first country to recognize Bitcoin as legal tender?

A. El Salvador

B. Estonia

C. Malta

D. Switzerland

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Correct Answer: Option A

Explanation:
El Salvador made Bitcoin legal tender alongside the US Dollar in September 2021.

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Question #3

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Who was the first woman to win the Fields Medal?

A. Sophie Germain

B. Maryam Mirzakhani

C. Ada Lovelace

D. Emmy Noether

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Correct Answer: Option B

Explanation:
Maryam Mirzakhani was the first woman to receive the Fields Medal, often referred to as the Nobel Prize of mathematics, in 2014.

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