please answer all

Question 8 What is the most comprehensive U.S. law regarding worker safety? O the Civil Rights Act of 1991 the Rehabilitation Act of 1973 O the Americans with Disabilities Act the Occupational Safety and Health Act O the Fourteenth Amendment Question 9 Which job design technique involving the addition of decision-making authorities to a job is credited to Frederick Herzberg? job rotation O job enrichment O job sharing job extension job enlargement stion 10 What is a basic difference between job specifications and job descriptions? O Job specifications list observable actions, and job descriptions describe general qualities. Job descriptions look at a job's activities, and job specifications look at the qualities needed to do the job. Job specifications look at a job's activities, and job descriptions look at the qualities needed to do the job. Job descriptions define tasks, and job specifications define responsibilities. O Job specifications define tasks, and job descriptions define responsibilities