disposal vs human activity

disposal and human activity both are nouns.

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

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

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

disposal (noun)	human activity (noun)
the act or means of getting rid of something	something that people do or cause to happen
a method of tending to or managing the affairs of some group of people (especially the group's business affairs)
a kitchen appliance for disposing of garbage
the power to use something or someone