It contains an analogy and technical language but no allusion
Answer: The words rust, garbage, rots, and junkyard give the park a really negative and dreary kind of look. Castle Park is explained in a way that makes you never want to visit it and the person telling us this sounds like they are either a parent or guardian of a child. This information makes you wonder what the park used to be like and from what it's like now you can tell it used to be a clean, fun, place to relax and play for everyone.
Speed is a quotient of distance and time, and it's how fast you're going.
Velocity is similar to speed, however it is in a given direction, and not as broad.
Acceleration is an increase in speed. (ant. deceleration)
s = d/t
v = Δs/Δt
a = a = Δv/Δt
A. A writer would write a satire when he/she needed to disguise his/her ideas in a story so they is didn't directly offend major political leaders