Actions speak louder than words
Why did you waste your money on comic books?
squander
It certainly has gotten bad over time
deteriorate
He took it apart and tore it down
dismantle
Impure or tainted
contaminate
It made me feel ineffective and worthless
negate
It has the appearance of wearing away
corrode
abolishment
annihilate
What is that smell?
rancid
My bank account shows way too much of this
deplete
A short-eared Owl may become this
extinct