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Extremely Hard Science Quiz Even Einstein would scratch his head!
Approximately how many shipwrecks lie on the bottom of the world's oceans?
Longitudinal waves show areas of compression and what else?
Which planet is referred to as being Cronian?
Which planet possess a ring entitled Egalite 1?
A particle whose substructure is unknown is called a what?
What is the pH value of apple juice?
A molecule that can act as an acid or a base is described as what?
Which number group in the Periodic Table contains oxygen?
In what era did dinosaurs live?
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Extremely Hard History Quiz, most people score only 3 out of 10.
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Can you beat the score of this nurse?
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Do you remember these old cities?