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Science and Nature Quiz for 30 December 2015

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: What is a petaflop?

A
A thousand trillion flops
B
100 teraflops
C
The modified labellum of an orchid
D
An alumnus of a philosophy education, research and training network