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Extremely Hard Science Quiz Even Einstein would scratch his head!

Question 1
What causes tides?
Question 2
The pearl is the birthstone for which star sign?
Question 3
How many types of sea urchin are there?
Question 4
Lobate Scarps are a feature of which planet?
Question 5
Complete the name of a famous feature on Mercury "The Caloris _____"?
Question 6
Which of these is an example of a transverse wave?
Question 7
How many times hotter than the sun is a lightning bolt?
Question 8
Which planet shares its name with a popular chocolate bar?
Question 9
What year was the first transatlantic fibre-optic cable laid?
Question 10
About how many stars are in the Milky Way?
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