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

[EX Q]: Cockroaches require food every _ to ten days but mut take in water every ten days.
[EX A]: seven

[EX Q]: Milk has _ essential nutrients for active bodies.
[EX A]: nine

[EX Q]: Volcanoes form in _ places on the Earth.
[EX A]:
two