What is the meaning of hydrogeological and why are there cond about hydrogeological conditions

What is the meaning of hydrogeological and why are there cond about hydrogeological conditions when talking about Concentrated animal feeding operations? Which type of water pollution is most related to Concentrated animal feeding operations? nitrate contamination What do the authors mean when they say that tobacco is being "chickenized"? State two reasons that western Canada was targeted for Concentrated animal feeding operations development.