Who discovered the first potentially habitable exoplanet around a red dwarf? MCQ with Answer and Explanation

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Who discovered the first potentially habitable exoplanet around a red dwarf?

A. Proxima Centauri b team

B. Michel Mayor

C. TRAPPIST-1 team

D. Both

Answer: Option A

Solution (By JKSSB Mock Tests)

Proxima b.

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Question #1

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Who was the first person to calculate the Earth's circumference?

A. Eratosthenes

B. Aristotle

C. Ptolemy

D. Pythagoras

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Correct Answer: Option A

Explanation:
Eratosthenes calculated the Earth's circumference with remarkable accuracy in the 3rd century BCE.

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Question #2

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Which country created the first national park?

A. United States

B. Australia

C. New Zealand

D. Canada

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Correct Answer: Option A

Explanation:
Yellowstone National Park in the United States was established in 1872 as the world's first national park.

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Question #3

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Who was the first to reach the summit of Mount Madison?

A. Modern

B. Historical

C. Local

D. Expedition

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Correct Answer: Option C

Explanation:
Early 19th century.

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