government activity vs politics

government activity and politics both are nouns.

Word	Noun	Adjective	Verb	Adverb
government activity	Yes	No	No	No
politics	Yes	No	No	No

government activity (noun)	politics (noun)
the act of governing; exercising authority	the profession devoted to governing and to political affairs
	the activities and affairs involved in managing a state or a government
	the study of government of states and other political units
	the opinion you hold with respect to political questions
	social relations involving intrigue to gain authority or power