The invention of the modern calendar system used globally today, the Gregorian Calendar, was introduced by which pope in 1582? MCQ with Answer and Explanation

Question
The invention of the modern calendar system used globally today, the Gregorian Calendar, was introduced by which pope in 1582?
A. Pope Urban II
B. Pope Gregory VII
C. Pope Gregory XIII
D. Pope Julius II
Answer: Option C
Solution (By JKSSB Mock Tests)
Pope Gregory XIII decreed the modification of the older Julian calendar to fix errors regarding the length of the solar year.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
Who discovered that the planet Saturn has a prominent ring system and its largest moon, Titan?
A. Galileo Galilei
B. Giovanni Cassini
C. Christiaan Huygens
D. William Herschel
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Correct Answer: Option C

Explanation:
Christiaan Huygens correctly identified Saturn's rings in 1655 and discovered its largest moon, Titan.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
Who discovered the exact value of the charge of an electron through the famous Oil-Drop Experiment?
A. J.J. Thomson
B. Max Planck
C. Robert Millikan
D. Ernest Rutherford
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Correct Answer: Option C

Explanation:
Robert A. Millikan measured the elementary electric charge of electrons using balanced oil droplets in 1909.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
Who discovered insulin, saving millions of lives affected by diabetes?
A. Frederick Banting and Charles Best
B. Robert Koch
C. Edward Jenner
D. Alexander Fleming
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Correct Answer: Option A

Explanation:
Sir Frederick Banting, along with Charles Best and John Macleod, isolated insulin in 1921-1922.
This question belongs to: Static General Knowledge Inventions and Discoveries
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