emergence vs human activity

emergence and human activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
emergence	Yes	No	No	No
human activity	Yes	No	No	No

As nouns, human activity is a hypernym of emergence; that is, human activity is a word with a broader meaning than emergence:

Other hypernyms of emergence include act, deed, human action.

emergence (noun)	human activity (noun)
the act of coming (or going) out; becoming apparent	something that people do or cause to happen
the act of emerging
the becoming visible
the gradual beginning or coming forth