You are paying less attention to your studies than you used to do.
What is “less” in this sentence?
I was studying English mcqs at a particular website which says less indicate adjective in that context but as far as I know:
Adjective: it is a word which is the characteristics of noun.
Adverb: it is a word or phrase that modifies the meaning of an adjective, verb, or other adverb, expressing manner, place, time or degree
So my question is, in the example above does not the word less showing less intensity towards attention? It does not indicate any behaviour or characteristic of attention. So the answer should be ADVERB, shouldn't it?