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Extremely Hard Science Quiz Even Einstein would scratch his head!
Dogs' unique relationship with humans mean they are referred to as man's best what?
How many different elements occur naturally?
Epoch J2000 refers to which planet?
The solid state of water is known as what?
In physics, which Greek letter is used to denote wavelength?
Which planet is name after the Roman God of Wealth?
Electron configuration was first conceived by which model?
Most jellyfish live less than how long?
The Japanese Spider Crab can grow to what length?
Which planet has a "Great Dark Spot"?
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