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

[EX Q]: Light falls on a _ dimensional object and creates a shadow.
[EX A]: three

[EX Q]: Most biologists divide the living world into _ Kingdoms.
[EX A]: five

[EX Q]: Many mystical traditions say that there are always _ forces at work in any worldly phenomenon.
[EX A]:
three