instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
World population continues to rise, even as a few countries move toward _ growth.
answer:
zero


question:
Plants are _ feet apart with ten feet between rows.
answer:
four


question:
Humans are bipeds who stand between five to _ feet in height when fully grown.
answer:

six