Answer:
Simile
=>a figure of speech involving the comparison of one thing with another thing of a different kind, used to make a description more emphatic or vivid.
Simile uses to compare something to another thing.
Explanation:
" My mom can be as fiery as a volcano when I don't do my chores on time."
Meaning, the word ''as fiery as a volcano'', have a strong state or maybe spirit if she see you that you don't do your chores on time.
Using simile means you use deep meaning, instead to quickly understand it.
I tried to explain clearly, hope it helps :)
Does this help?[^-^]