The phrase "are as viable" is correct and usable in written English.
It can be used when comparing the viability or feasibility of two or more options, ideas, or solutions.
Example: "Both methods are as viable as the traditional approach, offering unique advantages."
Alternatives: "are equally feasible" or "are just as practical".
Collections of very large numbers of species often occur in single layers of rock which likely represent a very limited timespan, or are scattered across huge areas where local differences are as viable an explanation as change over time.
What are the differences between a stock image created at DIS Image Studio and a stock image found on Getty, Shutterstock, etc.? While we're still focussed on depicting a certain level of generic relatability that's pervasive in stock imagery, our goal is to create and commission stock products that are as viable in the art market as they are in the commercial market.
In vitro data have suggested that pooled whole blood derived granulocytes are as viable as apheresis granulocytes and in vivo data has suggested that they are as safe as apheresis granulocytes In view of their ready availability, whole blood derived granulocytes are worth considering as a therapeutic product for clinical study and therapeutic use.
Diploid males are as viable as haploids and can mate with females, albeit less successfully than haploid males.
It's as viable as any other genre -- when it's great, it's great.
As land prices rise near populous areas, for instance, cavernous stores may not be as viable.
I don't believe that a state-run economy can be as viable as market capitalism in producing mass wealth.
But he may have been the first record-label executive to recognize that making wine for music fans could be as viable a business as making music.
Here Galerkin's method, a continuous method, is used and shown to be as viable as discrete methods for modelling discs of variable profile.
But the truism that less is more is as viable an argument in theater as it is in other aesthetic realms.
"It's great for the audiences, great for studios and theater owners in particular who can point to this and say the movie theater industry is as viable and relevant as it's ever been," he said.
