General Knowledge

Which vitamin is synthesized in human skin under sunlight?

A) Vitamin A
B) Vitamin C
C) Vitamin D ✓
D) Vitamin K
Ultraviolet B radiation converts skin precursors into vitamin D, essential for calcium metabolism and bone health.
This Answer is ✓ Verified and cross checked by Wasim Abbas and was last updated on May 21, 2026
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General Knowledge

In physics, what does the Pauli Exclusion Principle state?

A) No two atoms can collide
B) No two fermions can occupy same state
C) Energy cannot be destroyed
D) Light travels fastest
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General Knowledge

Who discovered the electron in 1897?

A) J.J. Thomson
B) Ernest Rutherford
C) Niels Bohr
D) James Chadwick
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General Knowledge

The “Opium Wars” were fought between China and which country?

A) France
B) USA
C) Britain
D) Russia
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General Knowledge

Which country currently has the most time zones including overseas territories?

A) Russia
B) USA
C) France
D) China
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General Knowledge

Which is the largest freshwater lake by surface area?

A) Lake Victoria
B) Lake Tanganyika
C) Lake Superior
D) Caspian Sea
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