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Extremely Hard Science Quiz Even Einstein would scratch his head!
In 1977, the first complete DNA genome sequenced was that of a what?
Which planet takes 29 Earth years to orbit the Sun?
Which planet has a day which lasts the equivalent of 176 Earth Days?
A molecule that can act as an acid or a base is described as what?
Which of these is NOT true of helium?
What is the term for a molecule with both a positive and a negative charge?
What type of ocean water is more dense?
Hematite makes up the surface of which planet?
Which sea does the European Eel spawn?
What is the pH value of seawater?
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