Esther is experiencing lower back pain after lifting tools and materials all day at her worksite. what type of hazard is most likely to have caused her symptom?
select the best option.

ergonomic

physical

biological

chemical

Adescription of  congestive heart  failure, its symptoms, risk factors, and treatment. to the  heart muscle  other than by artery or blood  flow  problems; signs of  heart  failure may not  meanthe patient has  heart  failure and they quit alcohol, or at least consume alcohol within the national recommended  limits.