1) Why are system safety principles not used by all safety professionals? Suggest some ways to overcome the obstacles to wider adoption of system safety.Your response must be at least 75 words in length.2) Explain why it is important for the safety professional to become knowledgeable and skilled in system safety concepts.Your response must be at least 75 words in length.3) What levels of the hierarchy of controls are most applicable to system safety? Are any levels not useful when applying system safety? Provide one or more examples that support your response.Your response must be at least 75 words in length.4) From your own experience or through research, select a job that has a high risk for causing workplace musculoskeletal disorders (WMSDs). Discuss how you could use design principles to reduce the risk of injury for this job. What obstacles might prevent your proposed job design from being implemented?Your response must be at least 200 words in length.