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

[EX Q]: Most amphibians reach maturity at _ or four years.
[EX A]: three

[EX Q]: Asbestos is the name applied to _ naturally occurring minerals that are mined from the earth.
[EX A]: six

[EX Q]: Postpartum depression affects nearly one in _ new mothers, and in varying degrees of intensity.
[EX A]:
ten