extension agent vs agricultural agent

extension agent and agricultural agent both are nouns.

Word	Noun	Adjective	Verb	Adverb
extension agent	Yes	No	No	No
agricultural agent	Yes	No	No	No

As nouns, extension agent and agricultural agent are synonyms defined as:

extension agent and agricultural agent: an advisor employed by the government to assist people in rural areas with methods of farming and home economics

Other synonyms of extension agent include county agent.

extension agent (noun)	agricultural agent (noun)
an advisor employed by the government to assist people in rural areas with methods of farming and home economics	an advisor employed by the government to assist people in rural areas with methods of farming and home economics