4. Watch the following video and answer the questions below. https://www.youtube.com/watch?v=PT6cjp zThw Note 1: If the link does not work, check the announcements (on myUnisa) as a link will be added there if any problems do occur. Alternatively, please contact the lecturer. Note 2: Please do not duplicate, re-create, or perform anything that you see on this video at home, as it may result in personal injury or property damage. Neither Unisa nor the lecturer will be held liable for any injury or damage that results (a) What type of separation method is being used to produce fresh H2O in this video? (b) Are there any chemical reactions involved in the production of pure H2O ? (c) Is the fresh H2O produced safe for human consumption? Motivate your reason. 5 marks