"now becomes apparent" is correct and usable in written English.
It is an idiomatic expression that suggests that something has become clear or obvious, usually after some time has passed. For example: After months of research, it now becomes apparent that solving this problem requires a radically different approach.
One reason for the importance of noble gas configurations in chemical bond formation now becomes apparent.
It now becomes apparent that it is not compulsory to block one's way through the opening overs in order to preserve wickets for the "death".
It now becomes apparent that the first excerpt contains quite a few enthymemes.
It now becomes apparent that once the process matrices of all contributing gates in a circuit have been computed conclusively, we limit the cost of finding and thus of process matrices for larger quantum circuits.
With 10 genes now known to be regulated within 5 hours of exposure to an organizer and with data on their normal expression, it now becomes apparent that even within these initial 5 hours, they fall into two distinct classes.
(The rationale for including health systems as a separate element of the diagram now becomes apparent).
The closeness of the finish has now become apparent.
But one less desirable effect of such a Europeanisation of politics has now become apparent: the conservative European People's party has closed ranks around Orbán, and is said to have told the commission president, José Manuel Barroso, to go easy on Hungary after Nicolas Sarkozy lost in France.
Although it seemed more muted than his earlier work, this farming saga's strength has now become apparent; rich in adjectives, it should not be taken at a clip but savoured for such detail as a second twin's "adder-like" birth.
"While we have been successful in obtaining customer records and delivering many dresses and accessories for customers all over the country, even after the bankruptcy filing date, it has now become apparent that the logistical and financial strain of fulfilling each and every open order makes continuing that course of action no longer possible.
Reviewing Roth's last book, The Dying Animal, Linda Grant noted: 'It is an unspoken rule of literary pages that women are not sent Roth for review... but it has now become apparent to many of Roth's admirers, both male and female, that there is a dark distaste for women, a repugnance that can only be described by the word misogyny.
