| http://www.w3.org/ns/prov#value | - 23 May 2008, 12:19 A. Whereas the use of synthetic fertilizers has greatly expanded agricultural productivity in many 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.-the 2nd 'their' may be confusing - problems vs ferti
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