Yes, the word upstream is an adverb.
It is also an adjective.
Some example sentences are:
The salmon are swimming upstream.
You'll find the campsite upstream from here.
Adverb
It can be an adverb or an adjective.
adverb
No, you is a pronoun not and adverb as its is defining a noun Adverb adds more to a verb like he is walking *fast*
No. Easier is an adjective. The adverb form is easily.
"Upstream" is primarily used as an adverb or adjective in contexts like geography or biology, referring to the direction against the flow of a river or stream. However, it can also function as a noun in specific contexts, such as in the oil and gas industry, where it refers to activities related to exploration and production. Thus, while it is predominantly an adverb or adjective, it can be classified as a noun in certain specialized usages.
upstream
downstream and upstream
Upstream - newspaper - was created in 1996.
The duration of Swimming Upstream is 3240.0 seconds.
The duration of Upstream - film - is 3600.0 seconds.
assembly upstream and downstream in ammetres
when a body moves against the flow, it is known as upstream flow
Swimming Upstream was created on 2003-02-27.
Upstream - film - was created on 1927-01-30.
Upstream - mobile marketing - was created in 2001.
Upstream Print Solutions was created in 1995.