No. It is an adjective because it is used to describe how many of an object.
One verb of the word "pollutant" is the word "pollute".
A simple verb is only one word eg - run A compound verb is a verb that is made up of more than one word eg - stirfry
Chase is a verb, ,so chases is one.
The word calm is an adjective. It means to be peaceful. Calm can also be a noun and a verb.
Dissuade is one verb of dissuasion.Other verbs are dissuades, dissuading and dissuaded.
Die is one verb for the word death.Some other verbs are dies, dying and died.
No. A verb phrase has more than one word eg has been eaten.Are is a be verb
The word on is a preposition.
Yes, it is one word, the verb or adjective overheard.
The word does has one syllable.
No, the word "leaked" is not an adverb.The word "leaked" is a verb.
The verb is to reside (resides, residing, resided).