This job is so menial, I finished it in no time without breaking a sweat.
I have used it to describe easy things in my life that I don't have to use much skill for.
Can you show a picture with it?
Answer:
"The author's objective tone is effective because it helps readers to analyze the information logically."
Explanation:
Found this with Brainly and Google.
It should be an adjective phrase, because it's modifying books, and it also has an adjective as it's head word.