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Extremely Hard Science Quiz Even Einstein would scratch his head!
What year was the first transatlantic fibre-optic cable laid?
What name is given to horizontal rows of elements in the Period Table?
Which of the following is not a greenhouse gas?
Hematite makes up the surface of which planet?
What is the rarest penguin in the world?
What type of whale appeared in Moby Dick?
Electron configuration was first conceived by which model?
In chemistry, what is the island of stability?
If you press Control and the letter V while using a Windows application, what will happen?
Which planet has the second largest moon in the Solar System?
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Extremely Hard History Quiz, most people score only 3 out of 10.