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Extremely Hard Science Quiz Even Einstein would scratch his head!
The angle of reflection is equal to the angle of what?
Encleadus is a moon of which planet?
Which planet has a day which lasts the equivalent of 176 Earth Days?
Who many species of seahorses are there?
What is the pH value of washing soda?
The African and Sumatran species have two horns; the Indian and Javan species have just one. What animals are we discussing?
When was the element bohrium discovered?
The first technical submarine was built in Germany in which year?
How many different elements occur naturally?
Most jellyfish live less than how long?
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