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Extremely Hard Science Quiz Even Einstein would scratch his head!
Which of these is NOT true of helium?
CO2 is the chemical formula for which gas?
A stegosaurus had which of these?
All dinosaurs lived where?
Who many species of seahorses are there?
Telesto is a moon of which planet?
Which sea does the European Eel spawn?
What percentage of marine fish species inhabit coral reefs?
What is the pH value of apple juice?
Which planet is the smallest of the "Gas giants"?
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