Including a positive or negative reinforcement in the subjects
Dehydration, diarrhea, emesis, excessive sweating, urinary tract/bladder infection,
The answer is : Tar
Tar is some sort of residual substance that we commonly found in tobacco products, which could cause the symptoms you've mentioned above
not only that, Tar is a highly carcinogenic substance, which mean that it generate high risk of cancer it get into our system
By exercising than have a healthy diet
Conduct research and experiments to improve the productivity and sustainability of field crops and farm animals