General KnowledgeWhich 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.
General Knowledge
A)
No two atoms can collide
B)
No two fermions can occupy same state
C)
Energy cannot be destroyed
D)
Light travels fastest
The Pauli Exclusion Principle states no two fermions (like electrons) can occupy the same quantum state, critical for atomic structure.
General Knowledge
A)
J.J. Thomson
B)
Ernest Rutherford
C)
Niels Bohr
D)
James Chadwick
J.J. Thomson discovered the electron using cathode ray experiments in 1897, earning the Nobel Prize in Physics in 1906.
General Knowledge
A)
France
B)
USA
C)
Britain
D)
Russia
The Opium Wars (1839–42, 1856–60) were fought between China and Britain, largely over the opium trade and sovereignty.
General Knowledge
A)
Russia
B)
USA
C)
France
D)
China
Due to overseas territories, France spans the most time zones of any country when its territories are included across the globe.
General Knowledge
A)
Lake Victoria
B)
Lake Tanganyika
C)
Lake Superior
D)
Caspian Sea
Lake Superior is the largest freshwater lake by surface area, shared by the United States and Canada.
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