I’m a little confused what exactly is your question?
Answer:
they were given a letter to give their parents to see if the parents approve
Unclear question. However, I infer you want to know where the text is taken from.
Answer:
The Golden Kite, The Silver Wind
Explanation:
The text is gotten from the book "The Golden Kite, The Silver Wind" by Ray Bradbury.
This short story is recognised for its commentary about the Cold War often emphasizing role of nuclear weapon during the Cold War.
He is likely to take measurements because setting up electrical wiring, installing power lines, and repairing equipment all consist in another job.
Excerpt 2 is argumentative and excerpt 3 is persuasive