What's the difference between a relative adverb and relative pronoun ?
Like in a sentence This is the place where he was assaulted. how where is modifying the verb was assaulted. I have been reading Wren and Martin for grammar it just says that the adverb modifies the verb but not how. I have also watched videos regarding the relative adverbs and in one video by KHAN ACADEMY, David who is the tutor just says "technically the adverb where is modifying the verb" but does not explains.
I want like a complete description like in this way it is modifying a verb or something like that.