Final answer:
The evidence that shows Kovaloff's intimidation by his nose includes his surprise and confusion when his nose is missing, as well as his disbelief and inability to understand the situation.
Step-by-step explanation:
The evidence from the text that gives the impression that Kovaloff is intimidated by his nose is the statement: "What do you want?" This shows his surprise and confusion when his nose is suddenly missing. Another piece of evidence is the statement: "Pardon me, I do not understand what you are talking about." This demonstrates Kovaloff's disbelief and inability to comprehend the situation.