Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[EX Q]: Group 16 is called the oxygen group.
[EX A]: Group 16 is called what?

[EX Q]: Humans have 23 pairs pairs of chromosomes.
[EX A]: How many pairs of chromosomes do human have ?

[EX Q]: Deep currents are convection currents that occur far below the surface of the ocean called.
[EX A]:
What are convection currents that occur far below the surface of the ocean called?