Question

A ___ is an observable event or occurrence

Answer 1

Answer:

A phenomenon is an observable event or occurrence

Explanation:

The definition of the word phenomenon has some variants but all of them derive in the fact that it is an event that is observed as it happens and which explanation or origin is in question for the majority, mostly a phenomenon is understand or explain through the senses instead of the logical reasons before further investigation.

Answer 2

The correct answer is 'phenomenon'. A phenomenon is any event that is observable, however common it may be.