Final answer:
The maximum level for the enchantment Punch is level II (2), and it increases the knockback effect of arrows when shot from a bow.
Step-by-step explanation:
The maximum level for the enchantment Punch is level II (2).
This enchantment can be applied to a bow and it increases the knockback effect when shooting arrows, pushing the target further away.
For example, if you have a bow with the Punch II enchantment, your arrows will have a stronger knockback effect than if you had a bow with the Punch I enchantment.