3.2 ISO 14001 is based on the Plan, Do, Check, Act (PDCA) cycle, which it has in common with many other management systems standards. a) In your own words, describe what you understand by the PDCA cycle in the context of an EMS. (4 marks) b) Identify six activities in an ISO 14001 EMS that relate to one or more of the PDCA segments and state the relevant clause reference. (6 marks)