TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Most electric meters have four or _ dials.

SOLUTION: five

PROBLEM: Sea urchins have _ paired rows of tiny tube feet which are found amongst the spines.

SOLUTION: five

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

SOLUTION:
zero