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Extremely Hard Science Quiz Even Einstein would scratch his head!
How many electrons does carbon have in its outer shell?
The solid state of water is known as what?
What is the pH value of seawater?
In 1977, the first complete DNA genome sequenced was that of a what?
How many moons orbit Mars?
What is the pH value of washing soda?
Hematite makes up the surface of which planet?
Which planet is known as The Bringer of Old Age?
Who discovered the electron in 1887?
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