In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

[EX Q]: Ozone is a gas that consists of _ atoms of oxygen.
[EX A]: three

[EX Q]: Education wastes about _ thirds of the talent of society.
[EX A]: two

[EX Q]: Any number multiplied by _ equals zero.
[EX A]:
zero