What term refers to the study of how work can be done most efficiently and safely? O A. Efficientology B. Ergonomics C. Materials safety D. Sterilization

Saved if you often notice flakes of dead skin on your shirt, you may have dandruff. if so,

The frequency in wich you perform certain exercise depends on the blank of the exercise

What is a negative influence on community health? a: national health debt b: citizens who drive unsafely c: unreliable public transportation d: stores that sell tobacco to minors