1. Palpable - is an intense feeling that is as good as being touched. It is an adjective because it is descriptive.
2. Impeccably- Because of the -ly suffix attached to the root word, impeccable, we can deduce that the word is an adverb that tells us how impeccable or without faults a certain thing is.
3. Deduction - This is a noun because it is the name of a process. Deduction is inference or subtraction as the case may be.
4. Exonerate - This is an act of absolving a person of a fault. A verb is an action word or a doing word.
Basically what you do is take info you got from the passage and put it into your theises, once you finished writing it check your grammar and add periods, commas, etc. You can also elaborate but thats up to you!