intensive vs a lot

intensive is a noun but a lot is not a noun.

Word	Noun	Adjective	Verb	Adverb
intensive	Yes	Yes	No	No
a lot	No	No	No	Yes

intensive (noun)	a lot (noun)
a modifier that has little meaning except to intensify the meaning it modifies

intensive (adjective)	a lot (adjective)
of agriculture; intended to increase productivity of a fixed area by expending more capital and labor
tending to give force or emphasis
characterized by a high degree or intensity; often used as a combining form

intensive (adverb)	a lot (adverb)
	to a very great degree or extent