Who invented the cotton gin? MCQ with Answer and Explanation

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Who invented the cotton gin?

A. Eli Whitney

B. James Hargreaves

C. John Kay

D. Samuel Crompton

Answer: Option A

Solution (By JKSSB Mock Tests)

Eli Whitney invented the cotton gin.

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

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Question #1

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Who discovered cosmic rays?

A. Robert Millikan

B. Both

C. Enrico Fermi

D. Victor Hess

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Correct Answer: Option B

Explanation:
Victor Hess discovered cosmic rays.

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

Question #2

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Who discovered the first transiting Earth-sized exoplanet?

A. NASA

B. Kepler-186f

C. Both

D. Michel Mayor

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Correct Answer: Option B

Explanation:
Kepler mission.

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Question #3

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Which nation was the first to officially ban all disposable plastic bags?

A. Bangladesh

B. Rwanda

C. Kenya

D. France

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Correct Answer: Option A

Explanation:
Bangladesh became the first country to ban thin plastic bags in 2002 to prevent flooding.

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

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