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

Which of these is a sexual stereotype? a) on average, males are taller than females. b) people over the age of 60 are not interested in sex. c) male hormone levels differ from those of females. d) there are more male representatives than female representatives in congress.