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

Q: World population continues to rise, even as a few countries move toward _ growth.

A: zero
****
Q: Statistics show, however, that men are _ times more likely to be lefty than women.

A: three
****
Q: All confocal microscopes use laser light to scan biological specimens across _ dimensions.

A:
three
****