Hot zone. Air lock. These are both examples of jargon, aka slang.
Answer:
let fly a charge of Number 6 shot into the darkness
Explanation:
reckless behavior
The theme is Be kind or get denied ( I know this because I have read that book like a million times XD )
Traditional poetry usually has regular rhythms that set a pattern, making it easier to remember for recitation. These rhythms are especially enjoyable, because they reflect the natural movement of the human body. That's why poems with regular rhythms are often set to music for marching and dancing, amplifying the effect of the beat.
So basically, the rhyming and rhythms in these two poems makes the poem flow better and sound better. It also makes it easier to memorize.