Discuss the sources of air pollution that you are most likely to be exposed to while at home or at work or walking down the block or shopping or playing or just plain living your life. Look around you. Perhaps some of these sources may not be so noticeable on a daily basis or are easy to take for granted, but which may or may not potentially emit harmful compounds.
All applicants go through a series of tests that check their level of English and knowledge of formatting styles. The applicant is also required to present a sample of writing to the Evaluation Department. If you wish to find out more about the procedure, check out the whole process.