In ancient Chinese medicine, they believed that an illness was caused by a disruption in chi.
Answer: a)Solvents
Explanation: Potential water hazard is the hazard or adverse condition created by the water area when they rise above the limit or due to any other factor. The water hazard usually harms the workers or other people an also the environment.
solvents is considered as a liquid substance that is added to the water to dissolve the components.This in not a preferred method for the controlling of the water hazard.
She should tell the teenagers that being healthy is very important, and tell them how bad drugs, vaping and smoking is.