geological process vs activity

geological process and activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
geological process	Yes	No	No	No
activity	Yes	No	No	No

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

geological process: (geology) a natural process whereby geological features are modified
activity: a process existing in or produced by nature (rather than by the intent of human beings)

Other hypernyms of geological process include action, natural action, natural process.

geological process (noun)	activity (noun)
(geology) a natural process whereby geological features are modified	any specific behavior
	the trait of being active; moving or acting rapidly and energetically
	an organic process that takes place in the body
	a process existing in or produced by nature (rather than by the intent of human beings)
	the state of being active
	(chemistry) the capacity of a substance to take part in a chemical reaction