Here's why:
* Interjections are words or phrases that express strong emotions or feelings. They are often used in exclamation, and they stand alone, not grammatically connected to the rest of the sentence.
Let's look at the other terms:
* Description: Describes something or someone.
* Action: Refers to something being done.
* Qualification: Adds a condition or limitation to something.
While interjections can sometimes be used to express surprise, which can be associated with action, their primary purpose is to convey emotion directly.
Examples of interjections:
* Wow! (surprise)
* Ouch! (pain)
* Hurray! (joy)
* Goodness! (fear or surprise)
* Ugh! (disgust)