What mitigation measures can be implemented to control noise exposure in line with the hierarchy of control. (Refer to hierarchy of control given below). Debate the notion that exposure to noise levels can never be eradicated entirely in a factory. What opportunities does technology bring in controlling people exposure, for example use artificial intelligence to run the machines (AI). Discuss why the hierarchy of control (see image below) classified Personal Protective Equipment (PPE) as the least effective, but highly recommended in Africa