Riddle

Diamonds and stress have this to thank for their existence.

Choose an answer

A.Heat
B.Time
C.Friction
D.Pressure
Hint: It's a word with 8 letters, starting with "P".

Answer

Pressure

Why this is the answer

Diamonds form deep underground under intense geological pressure, and 'pressure' is also another word for stress.

This riddle is filed under Easy Riddles and rated Medium.

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