The phrase "arise gradually" is correct and usable in written English.
It can be used to describe a situation or phenomenon that develops or becomes noticeable over time, rather than suddenly.
Example: "The tension in the room began to arise gradually as the discussion progressed."
Alternatives: "develop slowly" or "emerge over time."
Local conditions determine whether Alpine timberlines arise gradually or abruptly as the altitude increases.
(Buckle 1991) Both this and private dominion, or property properly speaking, arise gradually with the proliferation and dispersion of family units, as humans and their needs multiply.
Different organs first appear while others differentiate, so that the species-specific features arise gradually, in a particular sequence of events.
Generally, new species arise gradually over long periods of time, but the genetic studies indicate that in this case speciation was virtually instantaneous, something that happens in plants but is very rare in animals.
However, when the amount of AgNO3 is excessive as 20 mg (sample h) and 300 mg (sample i), all peaks become stronger again, which means that the side effects will arise gradually as the amount of AgNO3 increases.
Some of those consequences would arise gradually: A growing portion of people's savings would go to purchase government debt rather than toward investments in productive capital goods such as factories and computers; that 'crowding out' of investment would lead to lower output and incomes than would otherwise be the case.
Diatonic harmony arose gradually, in the form of numerous exceptions to the rules of the church modes.
Nonlinear behavior arises gradually with respect to driving amplitude, and is attributed to the rolling-up of the vortex sheet.
Perhaps the need arose gradually in response to stresses of new social conditions, environmental change or competition from nonmodern human species.
In a commentary accompanying the Nature report, Dr. McBrearty, who was not involved in the research, wrote that she believed that "modern cognitive capacity emerged at the same time as modern anatomy, and that various aspects of human culture arose gradually" over the course of subsequent millenniums.
Recognition based on facts, not preferences, arose gradually precisely to prevent situations such as the one that has developed in Venezuela, where urgent diplomatic business needs to be conducted but can't be, because countries have withdrawn recognition of those in power.
