Tone is 'the attitude that is conveyed by the narrator of a story'. A reader can be persuaded by a writer's use of tone particularly if it matches the readers own 'feelings' on the subject.
For example in Mein Kampf Hitler used a very superior tone - which matched the sentiments of the general population of Germany at the time.
Answer:
Heart of stone: Cruel or stern nature
"My teacher has a heart of stone"
Walking Encyclopedia: Very knowledgeable about everything
"Joey is a walking encyclopedia"
Music to my ears: Exactly what you want to hear
"His voice is music to my ears"
Tall tree: Taller in height like a giant
"He is a tall tree"
Explanation:
Have a good day
-Illumi