Respuesta :
Answer:
an Idiom is usually used when a person isn't paying attention, and in this case, "you've got your head in the clouds" mean you aren't paying attention.
Answer:
Because it is not realalistic
Explanation:
Idiom Definition: An idiom is a phrase or expression that typically presents a figurative, non-literal meaning attached to the phrase. Therefore, head in the clouds is not literal and it is a figure of speach which makes it an idiom.