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

[Q]: Wild alfalfa is fairly drought resistant, with roots going down _ feet.
[A]: ten


[Q]: New species are believed to arrive in the Mediterranean at the rate of _ to five annually.
[A]: four


[Q]: Toddlers are approximately ten inches tall and babies are _ inches tall.
[A]:
eight