Riddle

I'm blue at day and black at night; I contain creatures born and died. What am I?

Choose an answer

A.The sky
B.A swimming pool
C.Rain
D.Seawater
Hint: It's a word with 8 letters, starting with "S".

Answer

Seawater

Why this is the answer

The ocean looks blue/black depending on light and contains marine life.

This riddle is filed under Dark Riddles and rated Medium.

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