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Science and Nature Quiz for 17 February 2021

A new science quiz is available each week. Try our daily general knowledge quiz or work through our archive of daily and themed quizzes.

Question 1: In astronomy, what is AU?

A
The mean distance of the Sun from the Earth
B
The aphelion of Uranus
C
The Baily's beads effect
D
The Goldilocks range of orbits around a star within which a planet could support liquid water