Sentence examples similar to two major problems are present from inspiring English sources

Two major problems are noise and air pollution.

Two major problems are linked to var2CSA.

The episode contains two "screw the audience act breaks" in which a major problem is presented before the commercial but suddenly ends after the break.

One major problem is the dearth of secular community institutions.

One major problem is what economists call information asymmetry.

One major problem was making ends meet.

One major problem is the persistence of traditional teaching methods.

Secondly, we have solved two major problems that are present in spatial ecological regressions, i.e. those that use spatial data and, consequently, perform a spatial adjustment in order to obtain consistent estimators.

There were two major problems, which were in fact related.

"One of the major problems is funding.

22 Ketone group labelling is achieved by reaction with a hydrazide probe; this presents two major problems: the reaction is not truly bioorthogonal, as ketones are found in many biomolecules, and reduced pH values are required for efficient ligation.