GMAT Sentence Correction (SC) | Whereas the use of synthetic fertilizers has greatly expanded agricult

Whereas the use ofsynthetic fertilizers has greatly expanded agricultural productivity inmany parts of the world ,an increase in their use can create serious environmental problems such as water pollution, and their substitution for more traditional fertilizers may accelerate soil structure deterioration and soil erosion.

(A) an increase in their use can create serious environmental problems such as water pollution, and their substitution for more traditional fertilizers

(B) an increase in
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