<prompt> Ergonomics-Adjusting the Worker to his jobStudy of human behaviorStudy of social mobilityNone  <response>: - the term ergonomics is derived from ergon, meaning work and nomos , meaning law. - it simply means fitting the job to the worker. - the objective of ergonomics is to achieve the best mutual adjustment of man and his work for the improvement of human efficiency and well-being. Reference : Parks textbook of preventive and social medicine, 23rd edition, pg no:803 p 