[20 marks] Question 1: Human-based activities are leading to serious, dramatical, environmental concerns. These activities are leading to an incessant emission of polluants such as CO, O3, SO2, NOX and PMS,

straight into the atmosphere. What are the sources of such polluants? Develop your answer upon mentioning health and environmental considerations of such polluants. Moreover, propose some techniques (up to three) that can ultimately help in suppressing such unstopabale emmisions. These techniques, that you will propose, should have a sustainable character for a sustainable future. Hint: Rely on your slides to develop your answer and you must do some literature review to complete it.