Question $1$:

Ergonomics is a multidisciplinary approach, encompassing various fields such as engineering, mathematics and statistics, anatomy and physiology, applied psychology, and sociology. It is anticipated that ergonomics can assist in resolving workplace issues. Explain the problems in your work field where ergonomics can play a positive role in improvement. Provide examples of its application.

Question $2$:

Explain examples of applying noise reduction techniques originating from operational and production machinery to mitigate the potential hazards to workers' hearing health.

Question $3$:

An individual's performance in their job often relies on the physical environment of their workplace. Poorly designed physical environments can adversely affect performance, influence health, and even jeopardize worker safety. Explain the applications concerning what needs to be considered regarding the work environment.

Note: The assignment is written in professional English according to TOEFL and IELTS standards. Plagiarism is strictly prohibited, and any definitions or research findings from journals or other sources should include footnotes $($source identification$)$ and references.