It is hard to prove that worker illness is a result of pesticide exposure in the field because other things, both on and off the job, can trigger physical symptoms, said Dr. Suzanne Wuerthele, an EPA toxicologist in Denver.
It is easy to prove that worker illness is a result of pesticide exposure.
mnli hypothesis: It is easy to prove that worker illness is a result of pesticide exposure. premise: It is hard to prove that worker illness is a result of pesticide exposure in the field because other things, both on and off the job, can trigger physical symptoms, said Dr. Suzanne Wuerthele, an EPA toxicologist in Denver.