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

[EX Q]: A diploid cell is a cell with two chromosomes.
[EX A]: What kind of cell is a cell with two chromosomes?

[EX Q]: Three many families are known quarks divided into.
[EX A]: How many families are known quarks divided into?

[EX Q]: Evaporation and condensation are similar because both are caused by changes in heat energy.
[EX A]:
In which way are evaporation and condensation similar?