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

[Q]: Any number divided by itself equals _ , except if that number is zero .
[A]: one


[Q]: Skunks tear out divots of turf that are _ to six inches in diameter.
[A]: three


[Q]: Cycling is ranked among the top _ exercises for improving cardiovascular fitness.
[A]:
three