Final answer:
The children saying 'sir, yes, sir!' in paragraph 6 of the story creates a tone of obedience and compliance.
Step-by-step explanation:
The repetition of the phrase 'sir, yes, sir!' by the children in paragraph 6 of the excerpt from '100 Days and 99 Nights' has the effect of creating a tone of obedience and compliance in the story. By using this phrase, the author establishes a sense of discipline and authority. The children's response to the situation adds to the overall tone of order and control.