Sentence examples for challenges now exist from inspiring English sources

"Challenges now exist in shades of gray".

Although more advanced methods now exist, engineers find them challenging to use because of the abundant data needed and intensive data analyses.

We have chosen this model because homologues now exist but are sufficiently dissimilar in sequence that they represent a challenging MR test case.

K-cups now exist.

About 150 now exist.

Numerous examples of this process now exist.

Scores of alternative cryptocurrencies now exist.

Several such gravitational wave detectors now exist.

Many variations now exist [ 39, 40].

The app "Superuser" should now exist.

Adding to the complexity of the modern identity and access management challenge, business data now exists far beyond the traditional network perimeter.