The phrase "act as background" is correct and usable in written English.
It can be used when describing something that serves as a backdrop or context for a particular situation or event.
Example: "The soft music in the café acted as background to our conversation, creating a relaxed atmosphere."
Alternatives: "serve as a backdrop" or "function as a context".
The "Reflective" list features quieter, lower key tunes that can act as background music for small group discussions or individual work.
Alexander Skarsgård lends a genuine intelligence and quiet menace as the lead antagonist, while most of the rest of the cast (James Woods, Dominic Purcell, Willa Holland, etc) merely act as background characters to the primary drama.
Somerset et al [ 59] report that in making referral decisions, patients' social status and their ability to articulate verbally act as background (and unexpressed) influences that affect the likelihood of referral.
Functionally, K2P channels act as the classical background 'leak' potassium channels that contribute to the resting membrane potential in a wide variety of cells including neurons, skeletal and heart myocytes, glia and many different types of epithelial cells (Enyedi and Czirjak, 2010).
In view of the language of the Project Act, as well as its background and legislative history, there can, I think, be no doubt of the answer.
In the early evening, the jazz acts as background to the dining, but grows into a boeuf (jam session) later as other musicians join in with the regulars.
The emitted light from the unfocused particle tracers acts as background noise for the measurement, reducing the signal-to-noise ratio of the measurement.
Subsequently, we evaluated whether heat is used as a cue for vessel location by performing two experiments in which linearly-shaped heat sources were presented over lower temperature backgrounds, i.e., bugs were confronted to a heated wire presented over a metal plate that acted as background.
Act as quickly as possible.
# to act as a background.
