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

Q: Jurassic rocks have _ outcrops in the area but they are identified by bore holes.

A: no
****
Q: Acute sinusitis is any infectious process in the sinus lasting from one day to _ weeks.

A: three
****
Q: Heavy infection can kill up to one in _ young calves.

A:
four
****