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Extremely Hard Science Quiz Even Einstein would scratch his head!
What is the second most abundant element in the Universe?
Epoch J2000 refers to which planet?
Approximately how many shipwrecks lie on the bottom of the world's oceans?
What is the largest sea fish?
A particle whose substructure is unknown is called a what?
Janus is a moon of which planet?
The African and Sumatran species have two horns; the Indian and Javan species have just one. What animals are we discussing?
Which planet is referred to as being Cronian?
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